HID: bring back possibility to specify vid/pid ignore on module load (6f4303fb) · Commits · 戴 / test

When hid quirks were converted to specialized driver, the HID_QUIRK_IGNORE has been moved completely, as the hid_ignore_list[] has been moved into the generic code. However userspace already got used to the possibility that modprobing usbhid with 'quirks=vid:pid:0x4' makes the device ignored by usbhid driver. So keep this quirk flag in place for backwards compatibility. Signed-off-by:

Jiri Kosina <jkosina@suse.cz>

drivers/hid/usbhid/hid-core.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -711,6 +711,9 @@ static int usbhid_parse(struct hid_device *hid)
		quirks = usbhid_lookup_quirk(le16_to_cpu(dev->descriptor.idVendor),
		le16_to_cpu(dev->descriptor.idProduct));

		if (quirks & HID_QUIRK_IGNORE)
		return -ENODEV;

		/* Many keyboards and mice don't like to be polled for reports,
		* so we will always set the HID_QUIRK_NOGET flag for them. */
		if (interface->desc.bInterfaceSubClass == USB_INTERFACE_SUBCLASS_BOOT) {

include/linux/hid.h

+1 −0

Original line number	Diff line number	Diff line
		@@ -270,6 +270,7 @@ struct hid_item {

		#define HID_QUIRK_INVERT 0x00000001
		#define HID_QUIRK_NOTOUCH 0x00000002
		#define HID_QUIRK_IGNORE 0x00000004
		#define HID_QUIRK_NOGET 0x00000008
		#define HID_QUIRK_BADPAD 0x00000020
		#define HID_QUIRK_MULTI_INPUT 0x00000040

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