HID: logitech-dj: Fix forwarding of very long HID++ reports

The HID++ spec also defines very long HID++ reports, with a reportid of
0x12. The MX5000 and MX5500 keyboards use 0x12 output reports for sending
messages to display on their buildin LCD.

Userspace (libmx5000) supports this, in order for this to work when talking
to the HID devices instantiated for the keyboard by hid-logitech-dj,
we need to properly forward these reports to the device.

This commit fixes logi_dj_ll_raw_request not forwarding these reports.

Fixes: f2113c3020ef ("HID: logitech-dj: add support for Logitech Bluetooth Mini-Receiver")
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

diff --git a/drivers/hid/hid-logitech-dj.c b/drivers/hid/hid-logitech-dj.c
index ce00dc299404814f47467a75415c59845e4fffc0..963f48b76bff2c0b2f1fa30c72ae8239f392c02a 100644 (file)
--- a/drivers/hid/hid-logitech-dj.c
+++ b/drivers/hid/hid-logitech-dj.c
@@ -45,6 +45,7 @@
 
 #define REPORT_ID_HIDPP_SHORT                  0x10
 #define REPORT_ID_HIDPP_LONG                   0x11
+#define REPORT_ID_HIDPP_VERY_LONG              0x12
 
 #define HIDPP_REPORT_SHORT_LENGTH              7
 #define HIDPP_REPORT_LONG_LENGTH               20
@@ -1257,7 +1258,8 @@ static int logi_dj_ll_raw_request(struct hid_device *hid,
        int ret;
 
        if ((buf[0] == REPORT_ID_HIDPP_SHORT) ||
-           (buf[0] == REPORT_ID_HIDPP_LONG)) {
+           (buf[0] == REPORT_ID_HIDPP_LONG) ||
+           (buf[0] == REPORT_ID_HIDPP_VERY_LONG)) {
                if (count < 2)
                        return -EINVAL;