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staging: comedi: usbduxsigma: remove usbduxsigma_attach 

This driver originally used the 'attach' method in order to get
the firmware for the device from the comedi_config utility. It
now uses request_firmware_nowait() in the usb_driver probe to
get this firmware.

Since this driver has an 'attach_usb' method in the comedi_driver,
the 'attach' method can be removed because it is now optional.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
H Hartley Sweeten 2012-09-19 16:20:38 -07:00 committed by Greg Kroah-Hartman
parent bda60cbfe2
commit 453443f32f
1 changed files with 3 additions and 50 deletions
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53
drivers/staging/comedi/drivers/usbduxsigma.c
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@ -2301,10 +2301,8 @@ static void tidy_up(struct usbduxsub *usbduxsub_tmp)
usbduxsub_tmp->pwm_cmd_running = 0;
}
/* common part of attach and attach_usb */
static int usbduxsigma_attach_common(struct comedi_device *dev,
struct usbduxsub *uds,
void *aux_data, int aux_len)
struct usbduxsub *uds)
{
int ret;
struct comedi_subdevice *s;
@ -2314,9 +2312,6 @@ static int usbduxsigma_attach_common(struct comedi_device *dev,
down(&uds->sem);
/* pointer back to the corresponding comedi device */
uds->comedidev = dev;
/* trying to upload the firmware into the FX2 */
if (aux_data)
firmwareUpload(uds, aux_data, aux_len);
dev->board_name = "usbduxsigma";
/* set number of subdevices */
if (uds->high_speed)
@ -2419,47 +2414,6 @@ static int usbduxsigma_attach_common(struct comedi_device *dev,
return 0;
}
/* is called for COMEDI_DEVCONFIG ioctl (when comedi_config is run) */
static int usbduxsigma_attach(struct comedi_device *dev,
struct comedi_devconfig *it)
{
int ret;
int index;
int i;
void *aux_data;
int aux_len;
dev->private = NULL;
aux_data = comedi_aux_data(it->options, 0);
aux_len = it->options[COMEDI_DEVCONF_AUX_DATA_LENGTH];
if (aux_data == NULL)
aux_len = 0;
else if (aux_len == 0)
aux_data = NULL;
down(&start_stop_sem);
/* find a valid device which has been detected by the probe function of
* the usb */
index = -1;
for (i = 0; i < NUMUSBDUX; i++) {
if ((usbduxsub[i].probed) && (!usbduxsub[i].attached)) {
index = i;
break;
}
}
if (index < 0) {
dev_err(dev->class_dev,
"usbduxsigma: error: attach failed, dev not connected to the usb bus.\n");
ret = -ENODEV;
} else
ret = usbduxsigma_attach_common(dev, &usbduxsub[index],
aux_data, aux_len);
up(&start_stop_sem);
return ret;
}
/* is called from comedi_usb_auto_config() */
static int usbduxsigma_attach_usb(struct comedi_device *dev,
struct usb_interface *uinterf)
{
@ -2478,7 +2432,7 @@ static int usbduxsigma_attach_usb(struct comedi_device *dev,
"usbduxsigma: error: attach_usb failed, already attached\n");
ret = -ENODEV;
} else
ret = usbduxsigma_attach_common(dev, uds, NULL, 0);
ret = usbduxsigma_attach_common(dev, uds);
up(&start_stop_sem);
return ret;
}
@ -2499,9 +2453,8 @@ static void usbduxsigma_detach(struct comedi_device *dev)
static struct comedi_driver usbduxsigma_driver = {
.driver_name = "usbduxsigma",
.module = THIS_MODULE,
.attach = usbduxsigma_attach,
.detach = usbduxsigma_detach,
.attach_usb = usbduxsigma_attach_usb,
.detach = usbduxsigma_detach,
};
static void usbdux_firmware_request_complete_handler(const struct firmware *fw,