103 lines
3.8 KiB
Diff
103 lines
3.8 KiB
Diff
Bugzilla: 1089583
|
|
Upstream-status: Sent for 3.15
|
|
|
|
From 4cebb979af8d7bd1ec463406eaf57a44bd5b9f04 Mon Sep 17 00:00:00 2001
|
|
From: Benjamin Tissoires <benjamin.tissoires@redhat.com>
|
|
Date: Tue, 22 Apr 2014 11:21:00 -0400
|
|
Subject: [PATCH] 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.
|
|
|
|
We introduce a generic HID_GROUP_HAVE_SPECIAL_DRIVER which can be reused
|
|
amoung other drivers if they want to have a catch rule but still
|
|
have multitouch devices handled through hid-multitouch.
|
|
|
|
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>
|
|
---
|
|
drivers/hid/hid-core.c | 10 ++++++++--
|
|
drivers/hid/hid-rmi.c | 6 ++++--
|
|
include/linux/hid.h | 13 +++++++++++++
|
|
3 files changed, 25 insertions(+), 4 deletions(-)
|
|
|
|
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
|
|
index 6ba2fd0..ea18639 100644
|
|
--- a/drivers/hid/hid-core.c
|
|
+++ b/drivers/hid/hid-core.c
|
|
@@ -776,6 +776,14 @@ 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_HAVE_SPECIAL_DRIVER;
|
|
+
|
|
vfree(parser);
|
|
return 0;
|
|
}
|
|
@@ -1840,8 +1848,6 @@ 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 a4f04d4..a97a373 100644
|
|
--- a/drivers/hid/hid-rmi.c
|
|
+++ b/drivers/hid/hid-rmi.c
|
|
@@ -863,8 +863,10 @@ 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(BUS_I2C, HID_GROUP_HAVE_SPECIAL_DRIVER,
|
|
+ USB_VENDOR_ID_SYNAPTICS, HID_ANY_ID) },
|
|
+ { HID_DEVICE(BUS_USB, HID_GROUP_HAVE_SPECIAL_DRIVER,
|
|
+ USB_VENDOR_ID_SYNAPTICS, HID_ANY_ID) },
|
|
{ }
|
|
};
|
|
MODULE_DEVICE_TABLE(hid, rmi_id);
|
|
diff --git a/include/linux/hid.h b/include/linux/hid.h
|
|
index 1b5f1e9..2fdd612 100644
|
|
--- a/include/linux/hid.h
|
|
+++ b/include/linux/hid.h
|
|
@@ -299,6 +299,19 @@ struct hid_item {
|
|
#define HID_GROUP_MULTITOUCH 0x0002
|
|
#define HID_GROUP_SENSOR_HUB 0x0003
|
|
#define HID_GROUP_MULTITOUCH_WIN_8 0x0004
|
|
+#define HID_GROUP_HAVE_SPECIAL_DRIVER 0xffff
|
|
+/*
|
|
+ * HID_GROUP_HAVE_SPECIAL_DRIVER should be used when the device needs to be
|
|
+ * scanned in case it is handled by either hid-multitouch, hid-generic,
|
|
+ * hid-sensor-hub or any other generic hid driver.
|
|
+ *
|
|
+ * Devices declared in hid_have_special_driver[] in hid-core.c can use
|
|
+ * HID_GROUP_ANY instead because there will be not overlap between their
|
|
+ * specific driver and a generic one.
|
|
+ *
|
|
+ * Note: HID_GROUP_ANY is declared in linux/mod_devicetable.h
|
|
+ * and has a value of 0x0000
|
|
+ */
|
|
|
|
/*
|
|
* This is the global environment of the parser. This information is
|
|
--
|
|
1.9.0
|
|
|