Re: [PATCH] HID: logitech-hidpp: Hard-code HID++ 1.0 fast scroll support

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On Mon, Jan 16, 2023 at 2:09 PM Bastien Nocera <hadess@xxxxxxxxxx> wrote:
>
> HID++ 1.0 devices only export whether Fast Scrolling is enabled, not
> whether they are capable of it. Reinstate the original quirks for the 3
> supported mice so fast scrolling works again on those devices.
>
> Fixes: 908d325 ("HID: logitech-hidpp: Detect hi-res scrolling support")
> Link: https://bugzilla.kernel.org/show_bug.cgi?id=216903
> Signed-off-by: Bastien Nocera <hadess@xxxxxxxxxx>
> ---

Applied to for-6.3/logitech

Thanks!

Cheers,
Benjamin

>  drivers/hid/hid-logitech-hidpp.c | 17 +++++++++--------
>  1 file changed, 9 insertions(+), 8 deletions(-)
>
> diff --git a/drivers/hid/hid-logitech-hidpp.c b/drivers/hid/hid-logitech-hidpp.c
> index abf2c95e4d0b..fa026e9107c5 100644
> --- a/drivers/hid/hid-logitech-hidpp.c
> +++ b/drivers/hid/hid-logitech-hidpp.c
> @@ -77,6 +77,7 @@ MODULE_PARM_DESC(disable_tap_to_click,
>  #define HIDPP_QUIRK_HIDPP_WHEELS               BIT(26)
>  #define HIDPP_QUIRK_HIDPP_EXTRA_MOUSE_BTNS     BIT(27)
>  #define HIDPP_QUIRK_HIDPP_CONSUMER_VENDOR_KEYS BIT(28)
> +#define HIDPP_QUIRK_HI_RES_SCROLL_1P0          BIT(29)
>
>  /* These are just aliases for now */
>  #define HIDPP_QUIRK_KBD_SCROLL_WHEEL HIDPP_QUIRK_HIDPP_WHEELS
> @@ -3472,14 +3473,8 @@ static int hidpp_initialize_hires_scroll(struct hidpp_device *hidpp)
>                         hid_dbg(hidpp->hid_dev, "Detected HID++ 2.0 hi-res scrolling\n");
>                 }
>         } else {
> -               struct hidpp_report response;
> -
> -               ret = hidpp_send_rap_command_sync(hidpp,
> -                                                 REPORT_ID_HIDPP_SHORT,
> -                                                 HIDPP_GET_REGISTER,
> -                                                 HIDPP_ENABLE_FAST_SCROLL,
> -                                                 NULL, 0, &response);
> -               if (!ret) {
> +               /* We cannot detect fast scrolling support on HID++ 1.0 devices */
> +               if (hidpp->quirks & HIDPP_QUIRK_HI_RES_SCROLL_1P0) {
>                         hidpp->capabilities |= HIDPP_CAPABILITY_HIDPP10_FAST_SCROLL;
>                         hid_dbg(hidpp->hid_dev, "Detected HID++ 1.0 fast scroll\n");
>                 }
> @@ -4296,9 +4291,15 @@ static const struct hid_device_id hidpp_devices[] = {
>           HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH,
>                 USB_DEVICE_ID_LOGITECH_T651),
>           .driver_data = HIDPP_QUIRK_CLASS_WTP },
> +       { /* Mouse Logitech Anywhere MX */
> +         LDJ_DEVICE(0x1017), .driver_data = HIDPP_QUIRK_HI_RES_SCROLL_1P0 },
>         { /* Mouse logitech M560 */
>           LDJ_DEVICE(0x402d),
>           .driver_data = HIDPP_QUIRK_DELAYED_INIT | HIDPP_QUIRK_CLASS_M560 },
> +       { /* Mouse Logitech M705 (firmware RQM17) */
> +         LDJ_DEVICE(0x101b), .driver_data = HIDPP_QUIRK_HI_RES_SCROLL_1P0 },
> +       { /* Mouse Logitech Performance MX */
> +         LDJ_DEVICE(0x101a), .driver_data = HIDPP_QUIRK_HI_RES_SCROLL_1P0 },
>         { /* Keyboard logitech K400 */
>           LDJ_DEVICE(0x4024),
>           .driver_data = HIDPP_QUIRK_CLASS_K400 },
> --
> 2.39.0
>




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