From: José Expósito Date: Fri, 24 May 2024 11:21:35 +0000 (+0200) Subject: HID: uclogic: Support HUION devices with up to 20 buttons X-Git-Tag: io_uring-6.11-20240722~56^2~1^2~1 X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=48144e83daba5619adaf0baf4fcea98082dce818;p=linux-block.git HID: uclogic: Support HUION devices with up to 20 buttons The HID descriptor for HUION tablets was limited to 13 buttons. However, there are devices with more buttons in their frames. So far, the device with more buttons released by HUION is the Huion Kamvas Pro 24 (GT-240, QHD) [1], with 20 buttons. Tweak the HID descriptor to support it. Link: https://gitlab.freedesktop.org/libinput/libinput/-/issues/989 [1] Signed-off-by: José Expósito Signed-off-by: Jiri Kosina --- diff --git a/drivers/hid/hid-uclogic-rdesc.c b/drivers/hid/hid-uclogic-rdesc.c index b6dfdf6356a6..7cbd673747a5 100644 --- a/drivers/hid/hid-uclogic-rdesc.c +++ b/drivers/hid/hid-uclogic-rdesc.c @@ -689,10 +689,10 @@ const size_t uclogic_rdesc_v2_pen_template_size = 0xA0, /* Collection (Physical), */ \ 0x05, 0x09, /* Usage Page (Button), */ \ 0x19, 0x01, /* Usage Minimum (01h), */ \ - 0x29, 0x03, /* Usage Maximum (03h), */ \ - 0x95, 0x03, /* Report Count (3), */ \ + 0x29, 0x0A, /* Usage Maximum (0Ah), */ \ + 0x95, 0x0A, /* Report Count (10), */ \ 0x81, 0x02, /* Input (Variable), */ \ - 0x95, ((_size) * 8 - 45), \ + 0x95, ((_size) * 8 - 52), \ /* Report Count (padding), */ \ 0x81, 0x01, /* Input (Constant), */ \ 0xC0, /* End Collection, */ \