HID: rmi: do not handle touchscreens through hid-rmi
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@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index f05255d..64c71c8 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -776,6 +776,14 @@
(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;
}
@@ -1882,8 +1890,6 @@
{ 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 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 @@
/*
* 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 @@
#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.