HID: waltop: fix Media Tablet 10.6 inch zooming

Fix zoom controls of older version of Waltop Media Tablet 10.6 inch, aka
Genius G-Pen M609. This should make it supported on par with the newer
version, aka Genius G-Pen M609X.

The fix is extrapolated from the behavior of the newer version (Genius G-Pen
M609X) and both older and newer versions of Media Tablet 14.1 inch (Genius
G-Pen M712/M712X) and should work with high probability.

Signed-off-by: Nikolai Kondrashov <spbnick@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

1 files changed, 12 insertions, 3 deletions

diff --git a/drivers/hid/hid-waltop.c b/drivers/hid/hid-waltop.c
index 7d4b318c029f..246160a9fb89 100644
--- a/drivers/hid/hid-waltop.c
+++ b/drivers/hid/hid-waltop.c
@@ -487,10 +487,19 @@ static __u8 media_tablet_10_6_inch_rdesc_fixed[] = {
         0x0A, 0x2D, 0x02,   /*      Usage (AC Zoom In),             */
         0x09, 0xB6,         /*      Usage (Scan Previous Track),    */
         0x09, 0xB5,         /*      Usage (Scan Next Track),        */
-        0x15, 0x2C,         /*      Logical Minimum (44),           */
-        0x25, 0x30,         /*      Logical Maximum (48),           */
-        0x75, 0x08,         /*      Report Size (8),                */
+        0x08,               /*      Usage (00h),                    */
+        0x08,               /*      Usage (00h),                    */
+        0x08,               /*      Usage (00h),                    */
+        0x08,               /*      Usage (00h),                    */
+        0x08,               /*      Usage (00h),                    */
+        0x0A, 0x2E, 0x02,   /*      Usage (AC Zoom Out),            */
+        0x0A, 0x2D, 0x02,   /*      Usage (AC Zoom In),             */
+        0x15, 0x0C,         /*      Logical Minimum (12),           */
+        0x25, 0x17,         /*      Logical Maximum (23),           */
+        0x75, 0x05,         /*      Report Size (5),                */
         0x80,               /*      Input,                          */
+        0x75, 0x03,         /*      Report Size (3),                */
+        0x81, 0x03,         /*      Input (Constant, Variable),     */
         0x75, 0x20,         /*      Report Size (32),               */
         0x81, 0x03,         /*      Input (Constant, Variable),     */
         0xC0,               /*  End Collection,                     */