HID: Add full support for Logitech Unifying receivers

With this driver, all the devices paired to a single Unifying
receiver are exposed to user processes in separated /input/dev
nodes.

Keyboards with different layouts can be treated differently,
Multiplayer games on single PC (like home theater PC) can
differentiate input coming from different kbds paired to the
same receiver.

Up to now, when Logitech Unifying receivers are connected to a
Linux based system, a single keyboard and a single mouse are
presented to the HID Layer, even if the Unifying receiver can
pair up to six compatible devices. The Unifying receiver by default
multiplexes all incoming events (from multiple keyboards/mice)
into these two.

Signed-off-by: Nestor Lopez Casado <nlopezcasad@logitech.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index ea2c338814f..3d065d096a0 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -444,6 +444,8 @@
 #define USB_DEVICE_ID_S510_RECEIVER_2   0xc517
 #define USB_DEVICE_ID_LOGITECH_CORDLESS_DESKTOP_LX500   0xc512
 #define USB_DEVICE_ID_MX3000_RECEIVER   0xc513
+#define USB_DEVICE_ID_LOGITECH_UNIFYING_RECEIVER        0xc52b
+#define USB_DEVICE_ID_LOGITECH_UNIFYING_RECEIVER_2      0xc532
 #define USB_DEVICE_ID_SPACETRAVELLER    0xc623
 #define USB_DEVICE_ID_SPACENAVIGATOR    0xc626
 #define USB_DEVICE_ID_DINOVO_DESKTOP    0xc704