diff options
| author | Nikolai Kondrashov <spbnick@gmail.com> | 2019-02-10 13:14:04 +0300 |
|---|---|---|
| committer | Benjamin Tissoires <benjamin.tissoires@redhat.com> | 2019-02-21 14:00:54 +0300 |
| commit | 8a47670c35e2a8e70753eabd96d4f8d8b3c0eeba (patch) | |
| tree | 04f2534d1aa1d1eb94a1e6fedfae0995055591f5 /drivers/hid/hid-uclogic-params.h | |
| parent | fde44ac556359b0fd56e11b889686377392b7407 (diff) | |
| download | linux-8a47670c35e2a8e70753eabd96d4f8d8b3c0eeba.tar.xz | |
HID: uclogic: Support Gray-coded rotary encoders
Add support for converting Gray-coded rotary encoder input into dial
input compatible with HID standard. Needed for Ugee G5 support.
Signed-off-by: Nikolai Kondrashov <spbnick@gmail.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Diffstat (limited to 'drivers/hid/hid-uclogic-params.h')
| -rw-r--r-- | drivers/hid/hid-uclogic-params.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/hid/hid-uclogic-params.h b/drivers/hid/hid-uclogic-params.h index 4ba6ecc2b8b8..ba48b1c7a0e5 100644 --- a/drivers/hid/hid-uclogic-params.h +++ b/drivers/hid/hid-uclogic-params.h @@ -88,6 +88,12 @@ struct uclogic_params_frame { */ unsigned int id; /* + * Number of the least-significant bit of the 2-bit state of a rotary + * encoder, in the report. Cannot point to a 2-bit field crossing a + * byte boundary. Zero if not present. Only valid if "id" is not zero. + */ + unsigned int re_lsb; + /* * Offset of the Wacom-style device ID byte in the report, to be set * to pad device ID (0xf), for compatibility with Wacom drivers. Zero * if no changes to the report should be made. Only valid if "id" is @@ -168,6 +174,7 @@ extern int uclogic_params_init(struct uclogic_params *params, ".frame.desc_ptr = %p\n" \ ".frame.desc_size = %u\n" \ ".frame.id = %u\n" \ + ".frame.re_lsb = %u\n" \ ".frame.dev_id_byte = %u\n" \ ".pen_frame_flag = 0x%02x\n" @@ -185,6 +192,7 @@ extern int uclogic_params_init(struct uclogic_params *params, (_params)->frame.desc_ptr, \ (_params)->frame.desc_size, \ (_params)->frame.id, \ + (_params)->frame.re_lsb, \ (_params)->frame.dev_id_byte, \ (_params)->pen_frame_flag |