Hi,
I need a way to determine whether an input device has been opened.
A private flag seems wasteful. Is this an acceptable method?
Regards
Oliver
+static int usbtouch_resume(struct usb_interface *intf)
+{
+ struct usbtouch_usb *usbtouch = usb_get_intfdata(intf);
+ struct input_dev *input = usbtouch->input;
+ int result = 0;
+
+ mutex_lock(&input->mutex);
+ if (input->users)
+ result = usb_submit_urb(usbtouch->irq, GFP_NOIO);
+ mutex_unlock(&input->mutex);
+ return result;
+}
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