HID: logitech-dj: Add support for a new lightspeed receiver iteration

The lightspeed receiver for the Pro X Superlight uses 13 byte mouse reports
without a report id. The workaround for such cases has been adjusted to
handle these larger packets.

The device now reports the status of its battery in wireless mode and
libratbag now recognizes the device and it can be configured with Piper.

https://github.com/libratbag/libratbag/pull/1122

Co-developed-by: Filipe Laíns <lains@riseup.net>
Signed-off-by: Filipe Laíns <lains@riseup.net>
Signed-off-by: Mavroudis Chatzilazaridis <mavchatz@protonmail.com>
Reviewed-by: Bastien Nocera <hadess@hadess.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index 8a310f8..7ac7deb 100644 (file)
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -866,6 +866,7 @@
 #define USB_DEVICE_ID_LOGITECH_NANO_RECEIVER_2         0xc534
 #define USB_DEVICE_ID_LOGITECH_NANO_RECEIVER_LIGHTSPEED_1      0xc539
 #define USB_DEVICE_ID_LOGITECH_NANO_RECEIVER_LIGHTSPEED_1_1    0xc53f
+#define USB_DEVICE_ID_LOGITECH_NANO_RECEIVER_LIGHTSPEED_1_2    0xc547
 #define USB_DEVICE_ID_LOGITECH_NANO_RECEIVER_POWERPLAY 0xc53a
 #define USB_DEVICE_ID_SPACETRAVELLER   0xc623
 #define USB_DEVICE_ID_SPACENAVIGATOR   0xc626

diff --git a/drivers/hid/hid-logitech-dj.c b/drivers/hid/hid-logitech-dj.c
index 6218041..fef67da 100644 (file)
--- a/drivers/hid/hid-logitech-dj.c
+++ b/drivers/hid/hid-logitech-dj.c
@@ -1692,11 +1692,12 @@ static int logi_dj_raw_event(struct hid_device *hdev,
                }
                /*
                 * Mouse-only receivers send unnumbered mouse data. The 27 MHz
-                * receiver uses 6 byte packets, the nano receiver 8 bytes.
+                * receiver uses 6 byte packets, the nano receiver 8 bytes,
+                * the lightspeed receiver (Pro X Superlight) 13 bytes.
                 */
                if (djrcv_dev->unnumbered_application == HID_GD_MOUSE &&
-                   size <= 8) {
-                       u8 mouse_report[9];
+                   size <= 13){
+                       u8 mouse_report[14];
 
                        /* Prepend report id */
                        mouse_report[0] = REPORT_TYPE_MOUSE;
@@ -1980,6 +1981,10 @@ static const struct hid_device_id logi_dj_receivers[] = {
          HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
                USB_DEVICE_ID_LOGITECH_NANO_RECEIVER_LIGHTSPEED_1_1),
         .driver_data = recvr_type_gaming_hidpp},
+       { /* Logitech lightspeed receiver (0xc547) */
+         HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
+               USB_DEVICE_ID_LOGITECH_NANO_RECEIVER_LIGHTSPEED_1_2),
+        .driver_data = recvr_type_gaming_hidpp},
 
        { /* Logitech 27 MHz HID++ 1.0 receiver (0xc513) */
          HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_MX3000_RECEIVER),