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staging: comedi: usbdux: remove usbdux_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 16:21:13 -07:00 committed by Greg Kroah-Hartman
parent 4e5ba2f6bd
commit 5a0f226089
1 changed files with 3 additions and 52 deletions
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55
drivers/staging/comedi/drivers/usbdux.c
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@ -2293,10 +2293,8 @@ static void tidy_up(struct usbduxsub *usbduxsub_tmp)
usbduxsub_tmp->pwm_cmd_running = 0;
}
/* common part of attach and attach_usb */
static int usbdux_attach_common(struct comedi_device *dev,
struct usbduxsub *udev,
void *aux_data, int aux_len)
struct usbduxsub *udev)
{
int ret;
struct comedi_subdevice *s = NULL;
@ -2306,10 +2304,6 @@ static int usbdux_attach_common(struct comedi_device *dev,
/* pointer back to the corresponding comedi device */
udev->comedidev = dev;
/* trying to upload the firmware into the chip */
if (aux_data)
firmwareUpload(udev, aux_data, aux_len);
dev->board_name = "usbdux";
/* set number of subdevices */
@ -2429,48 +2423,6 @@ static int usbdux_attach_common(struct comedi_device *dev,
return 0;
}
/* is called when comedi-config is called */
static int usbdux_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) {
printk(KERN_ERR
"comedi%d: usbdux: error: attach failed, no usbdux devs connected to the usb bus.\n",
dev->minor);
ret = -ENODEV;
} else
ret = usbdux_attach_common(dev, &usbduxsub[index],
aux_data, aux_len);
up(&start_stop_sem);
return ret;
}
/* is called from comedi_usb_auto_config() */
static int usbdux_attach_usb(struct comedi_device *dev,
struct usb_interface *uinterf)
{
@ -2492,7 +2444,7 @@ static int usbdux_attach_usb(struct comedi_device *dev,
dev->minor);
ret = -ENODEV;
} else
ret = usbdux_attach_common(dev, this_usbduxsub, NULL, 0);
ret = usbdux_attach_common(dev, this_usbduxsub);
up(&start_stop_sem);
return ret;
}
@ -2513,9 +2465,8 @@ static void usbdux_detach(struct comedi_device *dev)
static struct comedi_driver usbdux_driver = {
.driver_name = "usbdux",
.module = THIS_MODULE,
.attach = usbdux_attach,
.detach = usbdux_detach,
.attach_usb = usbdux_attach_usb,
.detach = usbdux_detach,
};
static void usbdux_firmware_request_complete_handler(const struct firmware *fw,