mirror of https://gitee.com/openkylin/linux.git
[media] pwc: Move various initialization to driver load and / or stream start
Doing a bunch of initialization every time /dev/video is opened, and thus for example when the udev rules probe for capabilities makes no sense, do it at driver load, resp. stream start instead. This is a preparation patch for allowing multiple opens of the /dev/video node. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Hans de Goede
Mauro Carvalho Chehab
parent
3b4d0ec791
commit
6eba93573d
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@ -261,8 +261,11 @@ static int set_video_mode_Nala(struct pwc_device *pdev, int size, int frames)
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PWC_DEBUG_MODULE("Failed to send video command... %d\n", ret);
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return ret;
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}
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if (pEntry->compressed && pdev->pixfmt == V4L2_PIX_FMT_YUV420)
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pwc_dec1_init(pdev->type, pdev->release, buf, pdev->decompress_data);
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if (pEntry->compressed && pdev->pixfmt == V4L2_PIX_FMT_YUV420) {
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ret = pwc_dec1_init(pdev, pdev->type, pdev->release, buf);
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if (ret < 0)
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return ret;
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}
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pdev->cmd_len = 3;
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memcpy(pdev->cmd_buf, buf, 3);
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@ -321,8 +324,11 @@ static int set_video_mode_Timon(struct pwc_device *pdev, int size, int frames, i
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if (ret < 0)
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return ret;
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if (pChoose->bandlength > 0 && pdev->pixfmt == V4L2_PIX_FMT_YUV420)
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pwc_dec23_init(pdev, pdev->type, buf);
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if (pChoose->bandlength > 0 && pdev->pixfmt == V4L2_PIX_FMT_YUV420) {
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ret = pwc_dec23_init(pdev, pdev->type, buf);
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if (ret < 0)
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return ret;
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}
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pdev->cmd_len = 13;
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memcpy(pdev->cmd_buf, buf, 13);
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@ -394,8 +400,11 @@ static int set_video_mode_Kiara(struct pwc_device *pdev, int size, int frames, i
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if (ret < 0)
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return ret;
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if (pChoose->bandlength > 0 && pdev->pixfmt == V4L2_PIX_FMT_YUV420)
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pwc_dec23_init(pdev, pdev->type, buf);
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if (pChoose->bandlength > 0 && pdev->pixfmt == V4L2_PIX_FMT_YUV420) {
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ret = pwc_dec23_init(pdev, pdev->type, buf);
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if (ret < 0)
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return ret;
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}
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pdev->cmd_len = 12;
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memcpy(pdev->cmd_buf, buf, 12);
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@ -452,6 +461,7 @@ int pwc_set_video_mode(struct pwc_device *pdev, int width, int height, int frame
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}
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pdev->view.x = width;
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pdev->view.y = height;
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pdev->vcompression = compression;
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pdev->frame_total_size = pdev->frame_size + pdev->frame_header_size + pdev->frame_trailer_size;
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pwc_set_image_buffer_size(pdev);
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PWC_DEBUG_SIZE("Set viewport to %dx%d, image size is %dx%d.\n", width, height, pwc_image_sizes[size].x, pwc_image_sizes[size].y);
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@ -1300,7 +1310,7 @@ static int pwc_mpt_get_status(struct pwc_device *pdev, struct pwc_mpt_status *st
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return 0;
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}
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#ifdef CONFIG_USB_PWC_DEBUG
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int pwc_get_cmos_sensor(struct pwc_device *pdev, int *sensor)
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{
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unsigned char buf;
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@ -1323,7 +1333,7 @@ int pwc_get_cmos_sensor(struct pwc_device *pdev, int *sensor)
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*sensor = buf;
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return 0;
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}
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#endif
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/* End of Add-Ons */
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/* ************************************************* */
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@ -1387,8 +1397,6 @@ long pwc_ioctl(struct pwc_device *pdev, unsigned int cmd, void *arg)
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ret = -EINVAL;
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else
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ret = pwc_set_video_mode(pdev, pdev->view.x, pdev->view.y, pdev->vframes, ARGR(qual), pdev->vsnapshot);
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if (ret >= 0)
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pdev->vcompression = ARGR(qual);
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break;
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}
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@ -22,29 +22,19 @@
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "pwc-dec1.h"
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void pwc_dec1_init(int type, int release, void *buffer, void *table)
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int pwc_dec1_init(struct pwc_device *pwc, int type, int release, void *buffer)
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{
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struct pwc_dec1_private *pdec;
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}
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if (pwc->decompress_data == NULL) {
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pdec = kmalloc(sizeof(struct pwc_dec1_private), GFP_KERNEL);
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if (pdec == NULL)
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return -ENOMEM;
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pwc->decompress_data = pdec;
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}
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pdec = pwc->decompress_data;
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void pwc_dec1_exit(void)
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{
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}
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int pwc_dec1_alloc(struct pwc_device *pwc)
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{
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pwc->decompress_data = kmalloc(sizeof(struct pwc_dec1_private), GFP_KERNEL);
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if (pwc->decompress_data == NULL)
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return -ENOMEM;
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return 0;
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}
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@ -22,8 +22,6 @@
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef PWC_DEC1_H
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#define PWC_DEC1_H
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@ -32,12 +30,8 @@
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struct pwc_dec1_private
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{
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int version;
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};
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int pwc_dec1_alloc(struct pwc_device *pwc);
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void pwc_dec1_init(int type, int release, void *buffer, void *private_data);
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void pwc_dec1_exit(void);
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int pwc_dec1_init(struct pwc_device *pwc, int type, int release, void *buffer);
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#endif
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@ -916,27 +916,5 @@ void pwc_dec23_decompress(const struct pwc_device *pwc,
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pout_planar_v += pwc->view.x;
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}
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}
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}
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void pwc_dec23_exit(void)
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{
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/* Do nothing */
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}
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/**
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* Allocate a private structure used by lookup table.
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* You must call kfree() to free the memory allocated.
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*/
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int pwc_dec23_alloc(struct pwc_device *pwc)
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{
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pwc->decompress_data = kmalloc(sizeof(struct pwc_dec23_private), GFP_KERNEL);
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if (pwc->decompress_data == NULL)
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return -ENOMEM;
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return 0;
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}
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/* vim: set cino= formatoptions=croql cindent shiftwidth=8 tabstop=8: */
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@ -49,19 +49,9 @@ struct pwc_dec23_private
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};
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int pwc_dec23_alloc(struct pwc_device *pwc);
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int pwc_dec23_init(struct pwc_device *pwc, int type, unsigned char *cmd);
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void pwc_dec23_exit(void);
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void pwc_dec23_decompress(const struct pwc_device *pwc,
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const void *src,
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void *dst,
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int flags);
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#endif
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/* vim: set cino= formatoptions=croql cindent shiftwidth=8 tabstop=8: */
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@ -2,6 +2,7 @@
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USB and Video4Linux interface part.
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(C) 1999-2004 Nemosoft Unv.
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(C) 2004-2006 Luc Saillard (luc@saillard.org)
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(C) 2011 Hans de Goede <hdegoede@redhat.com>
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NOTE: this version of pwc is an unofficial (modified) release of pwc & pcwx
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driver and thus may have bugs that are not present in the original version.
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@ -128,7 +129,6 @@ static struct usb_driver pwc_driver = {
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#define MAX_DEV_HINTS 20
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#define MAX_ISOC_ERRORS 20
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static int default_size = PSZ_QCIF;
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static int default_fps = 10;
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#ifdef CONFIG_USB_PWC_DEBUG
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int pwc_trace = PWC_DEBUG_LEVEL;
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@ -172,65 +172,6 @@ static struct video_device pwc_template = {
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/***************************************************************************/
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/* Private functions */
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static int pwc_allocate_buffers(struct pwc_device *pdev)
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{
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int i, err;
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void *kbuf;
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PWC_DEBUG_MEMORY(">> pwc_allocate_buffers(pdev = 0x%p)\n", pdev);
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/* Allocate Isochronuous pipe buffers */
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for (i = 0; i < MAX_ISO_BUFS; i++) {
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if (pdev->sbuf[i].data == NULL) {
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kbuf = kzalloc(ISO_BUFFER_SIZE, GFP_KERNEL);
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if (kbuf == NULL) {
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PWC_ERROR("Failed to allocate iso buffer %d.\n", i);
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return -ENOMEM;
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}
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PWC_DEBUG_MEMORY("Allocated iso buffer at %p.\n", kbuf);
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pdev->sbuf[i].data = kbuf;
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}
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}
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/* Allocate decompressor table space */
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if (DEVICE_USE_CODEC1(pdev->type))
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err = pwc_dec1_alloc(pdev);
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else
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err = pwc_dec23_alloc(pdev);
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if (err) {
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PWC_ERROR("Failed to allocate decompress table.\n");
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return err;
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}
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PWC_DEBUG_MEMORY("<< pwc_allocate_buffers()\n");
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return 0;
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}
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static void pwc_free_buffers(struct pwc_device *pdev)
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{
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int i;
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PWC_DEBUG_MEMORY("Entering free_buffers(%p).\n", pdev);
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/* Release Iso-pipe buffers */
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for (i = 0; i < MAX_ISO_BUFS; i++)
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if (pdev->sbuf[i].data != NULL) {
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PWC_DEBUG_MEMORY("Freeing ISO buffer at %p.\n", pdev->sbuf[i].data);
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kfree(pdev->sbuf[i].data);
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pdev->sbuf[i].data = NULL;
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}
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/* Intermediate decompression buffer & tables */
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if (pdev->decompress_data != NULL) {
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PWC_DEBUG_MEMORY("Freeing decompression buffer at %p.\n", pdev->decompress_data);
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kfree(pdev->decompress_data);
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pdev->decompress_data = NULL;
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}
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PWC_DEBUG_MEMORY("Leaving free_buffers().\n");
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}
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struct pwc_frame_buf *pwc_get_next_fill_buf(struct pwc_device *pdev)
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{
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unsigned long flags = 0;
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@ -435,12 +376,16 @@ static int pwc_isoc_init(struct pwc_device *pdev)
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int i, j, ret;
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struct usb_interface *intf;
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struct usb_host_interface *idesc = NULL;
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void *kbuf;
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if (pdev->iso_init)
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return 0;
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pdev->vsync = 0;
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pdev->vlast_packet_size = 0;
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pdev->fill_buf = NULL;
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pdev->vframe_count = 0;
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pdev->visoc_errors = 0;
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udev = pdev->udev;
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/* Get the current alternate interface, adjust packet size */
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@ -471,24 +416,31 @@ static int pwc_isoc_init(struct pwc_device *pdev)
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if (ret < 0)
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return ret;
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/* Allocate Isochronuous pipe buffers */
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for (i = 0; i < MAX_ISO_BUFS; i++) {
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kbuf = kzalloc(ISO_BUFFER_SIZE, GFP_KERNEL);
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if (kbuf == NULL) {
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PWC_ERROR("Failed to allocate iso buffer %d.\n", i);
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pdev->iso_init = 1;
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pwc_isoc_cleanup(pdev);
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return -ENOMEM;
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}
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PWC_DEBUG_MEMORY("Allocated iso buffer at %p.\n", kbuf);
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pdev->sbuf[i].data = kbuf;
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}
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/* Allocate Isochronuous urbs */
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for (i = 0; i < MAX_ISO_BUFS; i++) {
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urb = usb_alloc_urb(ISO_FRAMES_PER_DESC, GFP_KERNEL);
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if (urb == NULL) {
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PWC_ERROR("Failed to allocate urb %d\n", i);
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ret = -ENOMEM;
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break;
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pdev->iso_init = 1;
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pwc_isoc_cleanup(pdev);
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return -ENOMEM;
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}
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pdev->sbuf[i].urb = urb;
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PWC_DEBUG_MEMORY("Allocated URB at 0x%p\n", urb);
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}
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if (ret) {
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/* De-allocate in reverse order */
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while (i--) {
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usb_free_urb(pdev->sbuf[i].urb);
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pdev->sbuf[i].urb = NULL;
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}
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return ret;
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}
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/* init URB structure */
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for (i = 0; i < MAX_ISO_BUFS; i++) {
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@ -563,6 +515,8 @@ static void pwc_iso_free(struct pwc_device *pdev)
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static void pwc_isoc_cleanup(struct pwc_device *pdev)
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{
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int i;
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PWC_DEBUG_OPEN(">> pwc_isoc_cleanup()\n");
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if (pdev->iso_init == 0)
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@ -572,6 +526,16 @@ static void pwc_isoc_cleanup(struct pwc_device *pdev)
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pwc_iso_free(pdev);
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usb_set_interface(pdev->udev, 0, 0);
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/* Release Iso-pipe buffers */
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for (i = 0; i < MAX_ISO_BUFS; i++) {
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if (pdev->sbuf[i].data != NULL) {
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PWC_DEBUG_MEMORY("Freeing ISO buffer at %p.\n",
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pdev->sbuf[i].data);
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kfree(pdev->sbuf[i].data);
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pdev->sbuf[i].data = NULL;
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}
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}
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pdev->iso_init = 0;
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PWC_DEBUG_OPEN("<< pwc_isoc_cleanup()\n");
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}
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@ -705,7 +669,6 @@ static const char *pwc_sensor_type_to_string(unsigned int sensor_type)
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static int pwc_video_open(struct file *file)
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{
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int i, ret;
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struct video_device *vdev = video_devdata(file);
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struct pwc_device *pdev;
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@ -720,68 +683,6 @@ static int pwc_video_open(struct file *file)
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return -EBUSY;
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}
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if (!pdev->usb_init) {
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PWC_DEBUG_OPEN("Doing first time initialization.\n");
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pdev->usb_init = 1;
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/* Query sensor type */
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ret = pwc_get_cmos_sensor(pdev, &i);
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if (ret >= 0)
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{
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PWC_DEBUG_OPEN("This %s camera is equipped with a %s (%d).\n",
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pdev->vdev.name,
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pwc_sensor_type_to_string(i), i);
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}
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}
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/* Turn on camera and set LEDS on */
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pwc_camera_power(pdev, 1);
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pwc_set_leds(pdev, led_on, led_off);
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/* So far, so good. Allocate memory. */
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i = pwc_allocate_buffers(pdev);
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if (i < 0) {
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PWC_DEBUG_OPEN("Failed to allocate buffers memory.\n");
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pwc_free_buffers(pdev);
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return i;
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}
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/* Reset buffers & parameters */
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pdev->visoc_errors = 0;
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/* Set some defaults */
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pdev->vsnapshot = 0;
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/* Set video size, first try the last used video size
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(or the default one); if that fails try QCIF/10 or QSIF/10;
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it that fails too, give up.
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*/
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i = pwc_set_video_mode(pdev, pwc_image_sizes[pdev->vsize].x, pwc_image_sizes[pdev->vsize].y, pdev->vframes, pdev->vcompression, 0);
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if (i) {
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unsigned int default_resolution;
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PWC_DEBUG_OPEN("First attempt at set_video_mode failed.\n");
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if (pdev->type>= 730)
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default_resolution = PSZ_QSIF;
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else
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default_resolution = PSZ_QCIF;
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i = pwc_set_video_mode(pdev,
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pwc_image_sizes[default_resolution].x,
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pwc_image_sizes[default_resolution].y,
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10,
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pdev->vcompression,
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0);
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}
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if (i) {
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PWC_DEBUG_OPEN("Second attempt at set_video_mode failed.\n");
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pwc_free_buffers(pdev);
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return i;
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}
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/* Initialize the webcam to sane value */
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pwc_set_brightness(pdev, 0x7fff);
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pwc_set_agc(pdev, 1, 0);
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pdev->vopen++;
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file->private_data = vdev;
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PWC_DEBUG_OPEN("<< video_open() returns 0.\n");
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@ -798,10 +699,17 @@ static void pwc_video_release(struct video_device *vfd)
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if (device_hint[hint].pdev == pdev)
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device_hint[hint].pdev = NULL;
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/* Free intermediate decompression buffer & tables */
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if (pdev->decompress_data != NULL) {
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PWC_DEBUG_MEMORY("Freeing decompression buffer at %p.\n",
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pdev->decompress_data);
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kfree(pdev->decompress_data);
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pdev->decompress_data = NULL;
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}
|
||||
|
||||
kfree(pdev);
|
||||
}
|
||||
|
||||
/* Note that all cleanup is done in the reverse order as in _open */
|
||||
static int pwc_video_close(struct file *file)
|
||||
{
|
||||
struct video_device *vdev = file->private_data;
|
||||
|
|
@ -810,25 +718,10 @@ static int pwc_video_close(struct file *file)
|
|||
PWC_DEBUG_OPEN(">> video_close called(vdev = 0x%p).\n", vdev);
|
||||
|
||||
pdev = video_get_drvdata(vdev);
|
||||
if (pdev->vopen == 0)
|
||||
PWC_DEBUG_MODULE("video_close() called on closed device?\n");
|
||||
|
||||
if (DEVICE_USE_CODEC1(pdev->type))
|
||||
pwc_dec1_exit();
|
||||
else
|
||||
pwc_dec23_exit();
|
||||
|
||||
vb2_queue_release(&pdev->vb_queue);
|
||||
pwc_free_buffers(pdev);
|
||||
|
||||
/* Turn off LEDS and power down camera, but only when not unplugged */
|
||||
if (pdev->udev) {
|
||||
pwc_set_leds(pdev, 0, 0);
|
||||
pwc_camera_power(pdev, 0);
|
||||
pdev->vopen--;
|
||||
PWC_DEBUG_OPEN("<< video_close() vopen=%d\n", pdev->vopen);
|
||||
}
|
||||
pdev->vopen--;
|
||||
|
||||
PWC_DEBUG_OPEN("<< video_close() vopen=%d\n", pdev->vopen);
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
|
@ -946,6 +839,16 @@ static int start_streaming(struct vb2_queue *vq)
|
|||
if (!pdev->udev)
|
||||
return -ENODEV;
|
||||
|
||||
/* Turn on camera and set LEDS on */
|
||||
pwc_camera_power(pdev, 1);
|
||||
if (pdev->power_save) {
|
||||
/* Restore video mode */
|
||||
pwc_set_video_mode(pdev, pdev->view.x, pdev->view.y,
|
||||
pdev->vframes, pdev->vcompression,
|
||||
pdev->vsnapshot);
|
||||
}
|
||||
pwc_set_leds(pdev, led_on, led_off);
|
||||
|
||||
return pwc_isoc_init(pdev);
|
||||
}
|
||||
|
||||
|
|
@ -953,8 +856,11 @@ static int stop_streaming(struct vb2_queue *vq)
|
|||
{
|
||||
struct pwc_device *pdev = vb2_get_drv_priv(vq);
|
||||
|
||||
if (pdev->udev)
|
||||
if (pdev->udev) {
|
||||
pwc_set_leds(pdev, 0, 0);
|
||||
pwc_camera_power(pdev, 0);
|
||||
pwc_isoc_cleanup(pdev);
|
||||
}
|
||||
pwc_cleanup_queued_bufs(pdev);
|
||||
|
||||
return 0;
|
||||
|
|
@ -1253,7 +1159,6 @@ static int usb_pwc_probe(struct usb_interface *intf, const struct usb_device_id
|
|||
return -ENOMEM;
|
||||
}
|
||||
pdev->type = type_id;
|
||||
pdev->vsize = default_size;
|
||||
pdev->vframes = default_fps;
|
||||
strcpy(pdev->serial, serial_number);
|
||||
pdev->features = features;
|
||||
|
|
@ -1318,8 +1223,29 @@ static int usb_pwc_probe(struct usb_interface *intf, const struct usb_device_id
|
|||
PWC_DEBUG_PROBE("probe() function returning struct at 0x%p.\n", pdev);
|
||||
usb_set_intfdata(intf, pdev);
|
||||
|
||||
#ifdef CONFIG_USB_PWC_DEBUG
|
||||
/* Query sensor type */
|
||||
if (pwc_get_cmos_sensor(pdev, &rc) >= 0) {
|
||||
PWC_DEBUG_OPEN("This %s camera is equipped with a %s (%d).\n",
|
||||
pdev->vdev.name,
|
||||
pwc_sensor_type_to_string(rc), rc);
|
||||
}
|
||||
#endif
|
||||
|
||||
/* Set the leds off */
|
||||
pwc_set_leds(pdev, 0, 0);
|
||||
|
||||
/* Setup intial videomode */
|
||||
rc = pwc_set_video_mode(pdev, pdev->view_max.x, pdev->view_max.y,
|
||||
pdev->vframes, pdev->vcompression, 0);
|
||||
if (rc)
|
||||
goto err_free_mem;
|
||||
|
||||
/* Initialize the webcam to sane values */
|
||||
pwc_set_brightness(pdev, 0x7fff);
|
||||
pwc_set_agc(pdev, 1, 0);
|
||||
|
||||
/* And powerdown the camera until streaming starts */
|
||||
pwc_camera_power(pdev, 0);
|
||||
|
||||
rc = video_register_device(&pdev->vdev, VFL_TYPE_GRABBER, video_nr);
|
||||
|
|
@ -1402,7 +1328,6 @@ static void usb_pwc_disconnect(struct usb_interface *intf)
|
|||
* Initialization code & module stuff
|
||||
*/
|
||||
|
||||
static char *size;
|
||||
static int fps;
|
||||
static int compression = -1;
|
||||
static int leds[2] = { -1, -1 };
|
||||
|
|
@ -1410,7 +1335,6 @@ static unsigned int leds_nargs;
|
|||
static char *dev_hint[MAX_DEV_HINTS];
|
||||
static unsigned int dev_hint_nargs;
|
||||
|
||||
module_param(size, charp, 0444);
|
||||
module_param(fps, int, 0444);
|
||||
#ifdef CONFIG_USB_PWC_DEBUG
|
||||
module_param_named(trace, pwc_trace, int, 0644);
|
||||
|
|
@ -1420,7 +1344,6 @@ module_param(compression, int, 0444);
|
|||
module_param_array(leds, int, &leds_nargs, 0444);
|
||||
module_param_array(dev_hint, charp, &dev_hint_nargs, 0444);
|
||||
|
||||
MODULE_PARM_DESC(size, "Initial image size. One of sqcif, qsif, qcif, sif, cif, vga");
|
||||
MODULE_PARM_DESC(fps, "Initial frames per second. Varies with model, useful range 5-30");
|
||||
#ifdef CONFIG_USB_PWC_DEBUG
|
||||
MODULE_PARM_DESC(trace, "For debugging purposes");
|
||||
|
|
@ -1438,14 +1361,19 @@ MODULE_VERSION( PWC_VERSION );
|
|||
|
||||
static int __init usb_pwc_init(void)
|
||||
{
|
||||
int i, sz;
|
||||
char *sizenames[PSZ_MAX] = { "sqcif", "qsif", "qcif", "sif", "cif", "vga" };
|
||||
int i;
|
||||
|
||||
#ifdef CONFIG_USB_PWC_DEBUG
|
||||
PWC_INFO("Philips webcam module version " PWC_VERSION " loaded.\n");
|
||||
PWC_INFO("Supports Philips PCA645/646, PCVC675/680/690, PCVC720[40]/730/740/750 & PCVC830/840.\n");
|
||||
PWC_INFO("Also supports the Askey VC010, various Logitech Quickcams, Samsung MPC-C10 and MPC-C30,\n");
|
||||
PWC_INFO("the Creative WebCam 5 & Pro Ex, SOTEC Afina Eye and Visionite VCS-UC300 and VCS-UM100.\n");
|
||||
|
||||
if (pwc_trace >= 0) {
|
||||
PWC_DEBUG_MODULE("Trace options: 0x%04x\n", pwc_trace);
|
||||
}
|
||||
#endif
|
||||
|
||||
if (fps) {
|
||||
if (fps < 4 || fps > 30) {
|
||||
PWC_ERROR("Framerate out of bounds (4-30).\n");
|
||||
|
|
@ -1455,25 +1383,6 @@ static int __init usb_pwc_init(void)
|
|||
PWC_DEBUG_MODULE("Default framerate set to %d.\n", default_fps);
|
||||
}
|
||||
|
||||
if (size) {
|
||||
/* string; try matching with array */
|
||||
for (sz = 0; sz < PSZ_MAX; sz++) {
|
||||
if (!strcmp(sizenames[sz], size)) { /* Found! */
|
||||
default_size = sz;
|
||||
break;
|
||||
}
|
||||
}
|
||||
if (sz == PSZ_MAX) {
|
||||
PWC_ERROR("Size not recognized; try size=[sqcif | qsif | qcif | sif | cif | vga].\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
PWC_DEBUG_MODULE("Default image size set to %s [%dx%d].\n", sizenames[default_size], pwc_image_sizes[default_size].x, pwc_image_sizes[default_size].y);
|
||||
}
|
||||
#ifdef CONFIG_USB_PWC_DEBUG
|
||||
if (pwc_trace >= 0) {
|
||||
PWC_DEBUG_MODULE("Trace options: 0x%04x\n", pwc_trace);
|
||||
}
|
||||
#endif
|
||||
if (compression >= 0) {
|
||||
if (compression > 3) {
|
||||
PWC_ERROR("Invalid compression setting; use a number between 0 (uncompressed) and 3 (high).\n");
|
||||
|
|
|
|||
|
|
@ -158,7 +158,6 @@ struct pwc_device
|
|||
int release; /* release number */
|
||||
int features; /* feature bits */
|
||||
char serial[30]; /* serial number (string) */
|
||||
int usb_init; /* set when the cam has been initialized */
|
||||
|
||||
/*** Video data ***/
|
||||
int vopen; /* flag */
|
||||
|
|
|
|||
Loading…
Reference in New Issue