mirror of https://gitee.com/openkylin/linux.git
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>
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@ -2293,10 +2293,8 @@ static void tidy_up(struct usbduxsub *usbduxsub_tmp)
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usbduxsub_tmp->pwm_cmd_running = 0;
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usbduxsub_tmp->pwm_cmd_running = 0;
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}
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}
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/* common part of attach and attach_usb */
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static int usbdux_attach_common(struct comedi_device *dev,
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static int usbdux_attach_common(struct comedi_device *dev,
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struct usbduxsub *udev,
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struct usbduxsub *udev)
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void *aux_data, int aux_len)
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{
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{
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int ret;
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int ret;
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struct comedi_subdevice *s = NULL;
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struct comedi_subdevice *s = NULL;
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@ -2306,10 +2304,6 @@ static int usbdux_attach_common(struct comedi_device *dev,
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/* pointer back to the corresponding comedi device */
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/* pointer back to the corresponding comedi device */
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udev->comedidev = dev;
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udev->comedidev = dev;
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/* trying to upload the firmware into the chip */
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if (aux_data)
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firmwareUpload(udev, aux_data, aux_len);
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dev->board_name = "usbdux";
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dev->board_name = "usbdux";
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/* set number of subdevices */
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/* set number of subdevices */
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@ -2429,48 +2423,6 @@ static int usbdux_attach_common(struct comedi_device *dev,
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return 0;
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return 0;
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}
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}
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/* is called when comedi-config is called */
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static int usbdux_attach(struct comedi_device *dev, struct comedi_devconfig *it)
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{
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int ret;
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int index;
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int i;
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void *aux_data;
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int aux_len;
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dev->private = NULL;
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aux_data = comedi_aux_data(it->options, 0);
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aux_len = it->options[COMEDI_DEVCONF_AUX_DATA_LENGTH];
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if (aux_data == NULL)
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aux_len = 0;
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else if (aux_len == 0)
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aux_data = NULL;
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down(&start_stop_sem);
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/* find a valid device which has been detected by the probe function of
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* the usb */
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index = -1;
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for (i = 0; i < NUMUSBDUX; i++) {
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if ((usbduxsub[i].probed) && (!usbduxsub[i].attached)) {
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index = i;
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break;
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}
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}
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if (index < 0) {
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printk(KERN_ERR
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"comedi%d: usbdux: error: attach failed, no usbdux devs connected to the usb bus.\n",
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dev->minor);
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ret = -ENODEV;
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} else
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ret = usbdux_attach_common(dev, &usbduxsub[index],
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aux_data, aux_len);
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up(&start_stop_sem);
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return ret;
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}
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/* is called from comedi_usb_auto_config() */
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static int usbdux_attach_usb(struct comedi_device *dev,
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static int usbdux_attach_usb(struct comedi_device *dev,
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struct usb_interface *uinterf)
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struct usb_interface *uinterf)
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{
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{
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@ -2492,7 +2444,7 @@ static int usbdux_attach_usb(struct comedi_device *dev,
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dev->minor);
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dev->minor);
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ret = -ENODEV;
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ret = -ENODEV;
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} else
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} else
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ret = usbdux_attach_common(dev, this_usbduxsub, NULL, 0);
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ret = usbdux_attach_common(dev, this_usbduxsub);
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up(&start_stop_sem);
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up(&start_stop_sem);
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return ret;
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return ret;
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}
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}
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@ -2513,9 +2465,8 @@ static void usbdux_detach(struct comedi_device *dev)
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static struct comedi_driver usbdux_driver = {
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static struct comedi_driver usbdux_driver = {
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.driver_name = "usbdux",
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.driver_name = "usbdux",
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.module = THIS_MODULE,
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.module = THIS_MODULE,
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.attach = usbdux_attach,
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.detach = usbdux_detach,
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.attach_usb = usbdux_attach_usb,
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.attach_usb = usbdux_attach_usb,
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.detach = usbdux_detach,
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};
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};
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static void usbdux_firmware_request_complete_handler(const struct firmware *fw,
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static void usbdux_firmware_request_complete_handler(const struct firmware *fw,
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