The external buttons on HID touchpads are connected as pass through devices and button events are not reported in the rmi registers. As a result on these devices we need to allow the HID generic desktop button events to be processed by hid-input. Unfortunately, there is no way to query the touchpad to determine that it has pass through buttons so the RMI_DEVICE_HAS_PHYS_BUTTONS should be set manually when adding the device to rmi_id[].
Signed-off-by: Andrew Duggan <[email protected]> --- Here is the second version of the remaining patches in this patch series from last month. The most significant changes are setting the HAS_PHYS_BUTTONS flags in driver_data and avoiding reset being called with every button press. drivers/hid/hid-rmi.c | 20 +++++++++++++++++++- 1 file changed, 19 insertions(+), 1 deletion(-) diff --git a/drivers/hid/hid-rmi.c b/drivers/hid/hid-rmi.c index 018f80f..290f8f7 100644 --- a/drivers/hid/hid-rmi.c +++ b/drivers/hid/hid-rmi.c @@ -35,6 +35,7 @@ /* device flags */ #define RMI_DEVICE BIT(0) +#define RMI_DEVICE_HAS_PHYS_BUTTONS BIT(1) enum rmi_mode_type { RMI_MODE_OFF = 0, @@ -472,6 +473,15 @@ static int rmi_event(struct hid_device *hdev, struct hid_field *field, if ((data->device_flags & RMI_DEVICE) && (field->application == HID_GD_POINTER || field->application == HID_GD_MOUSE)) { + if (data->device_flags & RMI_DEVICE_HAS_PHYS_BUTTONS) { + if ((usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON) + return 0; + + if ((usage->hid == HID_GD_X || usage->hid == HID_GD_Y) + && !value) + return 1; + } + rmi_schedule_reset(hdev); return 1; } @@ -942,8 +952,13 @@ static int rmi_input_mapping(struct hid_device *hdev, * we want to make HID ignore the advertised HID collection * for RMI deivces */ - if (data->device_flags & RMI_DEVICE) + if (data->device_flags & RMI_DEVICE) { + if ((data->device_flags & RMI_DEVICE_HAS_PHYS_BUTTONS) && + ((usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON)) + return 0; + return -1; + } return 0; } @@ -991,6 +1006,9 @@ static int rmi_probe(struct hid_device *hdev, const struct hid_device_id *id) return ret; } + if (id->driver_data) + data->device_flags = id->driver_data; + /* * Check for the RMI specific report ids. If they are misisng * simply return and let the events be processed by hid-input -- 2.1.0 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
