Anssi Hannula wrote:
> Logitech USB Receiver (046d:c101) has two interfaces. The first one
> contains fields from HID_UP_KEYBOARD and HID_UP_LED, and the other one
> contains fields from HID_UP_CONSUMER and HID_UP_LOGIVENDOR. This device
> is used with multiple wireless Logitech products, including UltraX Media
> Remote.
>
> All fields on both interfaces are either keys or leds. All fields in the
> first interface are marked as Absolute, while the fields in the second
> interface are marked as Relative. Marking the keys as relative causes
> hidinput_hid_event() to send release events right after key press
> events.
>
> The device has EV_REP set, so the userspace expects the device to send
> repeat events if a key is held down. However, as hidinput_hid_event()
> sends release events immediately, repeat events are not sent at all. In
> fact, the userspace has no way of knowing if a key is being held down.
>
> Fix this by adding a quirk for 046d:c101 which changes relative keys to
> absolute ones.
>
Any comments?
> Signed-off-by: Anssi Hannula <[EMAIL PROTECTED]>
>
> ---
>
> hid-core.c | 5 +++++
> hid-input.c | 4 ++++
> hid.h | 1 +
> 3 files changed, 10 insertions(+)
>
>
> diff -Nurp -x '*~' linux-2.6.18-git21/drivers/usb/input/hid-core.c
> linux-2.6.18-git21-logimedia/drivers/usb/input/hid-core.c
> --- linux-2.6.18-git21/drivers/usb/input/hid-core.c 2006-10-04
> 14:22:15.000000000 +0300
> +++ linux-2.6.18-git21-logimedia/drivers/usb/input/hid-core.c 2006-10-04
> 14:34:44.000000000 +0300
> @@ -1602,6 +1602,9 @@ void hid_init_reports(struct hid_device
> #define USB_VENDOR_ID_SUN 0x0430
> #define USB_DEVICE_ID_RARITAN_KVM_DONGLE 0xcdab
>
> +#define USB_VENDOR_ID_LOGITECH 0x046d
> +#define USB_DEVICE_ID_LOGITECH_USB_RECEIVER 0xc101
> +
> /*
> * Alphabetically sorted blacklist by quirk type.
> */
> @@ -1768,6 +1771,8 @@ static const struct hid_blacklist {
> { USB_VENDOR_ID_PANJIT, 0x0003, HID_QUIRK_IGNORE },
> { USB_VENDOR_ID_PANJIT, 0x0004, HID_QUIRK_IGNORE },
>
> + { USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_USB_RECEIVER,
> HID_QUIRK_BAD_RELATIVE_KEYS },
> +
> { 0, 0 }
> };
>
> diff -Nurp -x '*~' linux-2.6.18-git21/drivers/usb/input/hid.h
> linux-2.6.18-git21-logimedia/drivers/usb/input/hid.h
> --- linux-2.6.18-git21/drivers/usb/input/hid.h 2006-10-04
> 14:22:15.000000000 +0300
> +++ linux-2.6.18-git21-logimedia/drivers/usb/input/hid.h 2006-10-04
> 14:45:45.000000000 +0300
> @@ -260,6 +260,7 @@ struct hid_item {
> #define HID_QUIRK_POWERBOOK_HAS_FN 0x00001000
> #define HID_QUIRK_POWERBOOK_FN_ON 0x00002000
> #define HID_QUIRK_INVERT_HWHEEL 0x00004000
> +#define HID_QUIRK_BAD_RELATIVE_KEYS 0x00008000
>
> /*
> * This is the global environment of the parser. This information is
> diff -Nurp -x '*~' linux-2.6.18-git21/drivers/usb/input/hid-input.c
> linux-2.6.18-git21-logimedia/drivers/usb/input/hid-input.c
> --- linux-2.6.18-git21/drivers/usb/input/hid-input.c 2006-10-04
> 14:22:15.000000000 +0300
> +++ linux-2.6.18-git21-logimedia/drivers/usb/input/hid-input.c
> 2006-10-04 14:46:52.000000000 +0300
> @@ -564,6 +564,10 @@ static void hidinput_configure_usage(str
> || ((device->quirks & HID_QUIRK_2WHEEL_MOUSE_HACK_7) &&
> (usage->hid == 0x00090007)))
> goto ignore;
>
> + if ((device->quirks & HID_QUIRK_BAD_RELATIVE_KEYS) &&
> + usage->type == EV_KEY && (field->flags & HID_MAIN_ITEM_RELATIVE))
> + field->flags &= ~HID_MAIN_ITEM_RELATIVE;
> +
> set_bit(usage->type, input->evbit);
>
> while (usage->code <= max && test_and_set_bit(usage->code, bit))
>
>
--
Anssi Hannula
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