Currently, hid-rmi drives every Synaptics product, but the touchscreens on the Windows tablets should be handled through hid-multitouch. Instead of providing a long list of PIDs, rely on the scan_report capability to detect which should go to hid-multitouch, and which should not go to hid-rmi. related bug: https://bugzilla.kernel.org/show_bug.cgi?id=74241 https://bugzilla.redhat.com/show_bug.cgi?id=1089583 Signed-off-by: Benjamin Tissoires <benjamin.tissoires@xxxxxxxxxx> --- Changes in v2: - use HID_GROUP_RMI instead of HID_GROUP_HAVE_SPECIAL_DRIVER - match all the HID devices with the proper group in hid-rmi instead of only the Synaptics ones (we already spoted one Razer laptop with this touchpad which has a different VID/PID) drivers/hid/hid-core.c | 10 ++++++++-- drivers/hid/hid-rmi.c | 3 +-- include/linux/hid.h | 8 ++++++++ 3 files changed, 17 insertions(+), 4 deletions(-) diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c index 5b74dab..bb43525 100644 --- a/drivers/hid/hid-core.c +++ b/drivers/hid/hid-core.c @@ -779,6 +779,14 @@ static int hid_scan_report(struct hid_device *hid) (hid->group == HID_GROUP_MULTITOUCH)) hid->group = HID_GROUP_MULTITOUCH_WIN_8; + /* + * Vendor specific handlings + */ + if ((hid->vendor == USB_VENDOR_ID_SYNAPTICS) && + (hid->group == HID_GROUP_GENERIC)) + /* hid-rmi should take care of them, not hid-generic */ + hid->group = HID_GROUP_RMI; + vfree(parser); return 0; } @@ -1888,8 +1896,6 @@ static const struct hid_device_id hid_have_special_driver[] = { { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGP_MOUSE) }, { HID_USB_DEVICE(USB_VENDOR_ID_STEELSERIES, USB_DEVICE_ID_STEELSERIES_SRWS1) }, { HID_USB_DEVICE(USB_VENDOR_ID_SUNPLUS, USB_DEVICE_ID_SUNPLUS_WDESKTOP) }, - { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, HID_ANY_ID) }, - { HID_I2C_DEVICE(USB_VENDOR_ID_SYNAPTICS, HID_ANY_ID) }, { HID_USB_DEVICE(USB_VENDOR_ID_THINGM, USB_DEVICE_ID_BLINK1) }, { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb300) }, { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb304) }, diff --git a/drivers/hid/hid-rmi.c b/drivers/hid/hid-rmi.c index c529b03..2451c7e 100644 --- a/drivers/hid/hid-rmi.c +++ b/drivers/hid/hid-rmi.c @@ -894,8 +894,7 @@ static void rmi_remove(struct hid_device *hdev) } static const struct hid_device_id rmi_id[] = { - { HID_I2C_DEVICE(USB_VENDOR_ID_SYNAPTICS, HID_ANY_ID) }, - { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, HID_ANY_ID) }, + { HID_DEVICE(HID_BUS_ANY, HID_GROUP_RMI, HID_ANY_ID, HID_ANY_ID) }, { } }; MODULE_DEVICE_TABLE(hid, rmi_id); diff --git a/include/linux/hid.h b/include/linux/hid.h index 54f855b..8ce9ff4 100644 --- a/include/linux/hid.h +++ b/include/linux/hid.h @@ -299,6 +299,9 @@ struct hid_item { /* * HID device groups + * + * Note: HID_GROUP_ANY is declared in linux/mod_devicetable.h + * and has a value of 0x0000 */ #define HID_GROUP_GENERIC 0x0001 #define HID_GROUP_MULTITOUCH 0x0002 @@ -306,6 +309,11 @@ struct hid_item { #define HID_GROUP_MULTITOUCH_WIN_8 0x0004 /* + * Vendor specific HID device groups + */ +#define HID_GROUP_RMI 0x0100 + +/* * This is the global environment of the parser. This information is * persistent for main-items. The global environment can be saved and * restored with PUSH/POP statements. -- 1.9.0 -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
