diff options
| author | Henrik Rydberg <rydberg@euromail.se> | 2012-05-01 08:40:01 +0200 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2012-05-01 12:54:55 +0200 |
| commit | 4fa3a5837b8427faab9b064b1948795eb77b9f8d (patch) | |
| tree | 4aaa5fffb375f0b44e5c0a44726948ac016f53bf /drivers/hid/hid-multitouch.c | |
| parent | 070748ed0b52399858a5967026a452bbb903a64c (diff) | |
HID: hid-multitouch: Switch to device groups
Switch the driver over to device group handling. By adding the
HID_GROUP_MULTITOUCH group to hid-core, hid-generic will no longer
match multitouch devices. By adding the HID_GROUP_MULTITOUCH entry to
the device list, hid-multitouch will match all unknown multitouch
devices, and udev will automatically load the module.
Since HID_QUIRK_MULTITOUCH never gets set, the special quirks handling
can be removed. Since all HID MT devices have HID_DG_CONTACTID, they
can be removed from the hid_have_special_driver list.
With this patch, the unknown device ids are no longer NULL, so the code
is modified to check for the generic entry instead.
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
Acked-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/hid/hid-multitouch.c')
| -rw-r--r-- | drivers/hid/hid-multitouch.c | 28 |
1 files changed, 19 insertions, 9 deletions
diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c index 1d5b94167b52..ea465f1ceae9 100644 --- a/drivers/hid/hid-multitouch.c +++ b/drivers/hid/hid-multitouch.c @@ -635,6 +635,21 @@ static void mt_set_maxcontacts(struct hid_device *hdev) } } +static void mt_post_parse_default_settings(struct mt_device *td) +{ + __s32 quirks = td->mtclass.quirks; + + /* unknown serial device needs special quirks */ + if (td->touches_by_report == 1) { + quirks |= MT_QUIRK_ALWAYS_VALID; + quirks &= ~MT_QUIRK_NOT_SEEN_MEANS_UP; + quirks &= ~MT_QUIRK_VALID_IS_INRANGE; + quirks &= ~MT_QUIRK_VALID_IS_CONFIDENCE; + } + + td->mtclass.quirks = quirks; +} + static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id) { int ret, i; @@ -654,7 +669,6 @@ static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id) * that emit events over several HID messages. */ hdev->quirks |= HID_QUIRK_NO_INPUT_SYNC; - hdev->quirks &= ~HID_QUIRK_MULTITOUCH; td = kzalloc(sizeof(struct mt_device), GFP_KERNEL); if (!td) { @@ -674,14 +688,8 @@ static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id) if (ret) goto fail; - if (!id && td->touches_by_report == 1) { - /* the device has been sent by hid-generic */ - mtclass = &td->mtclass; - mtclass->quirks |= MT_QUIRK_ALWAYS_VALID; - mtclass->quirks &= ~MT_QUIRK_NOT_SEEN_MEANS_UP; - mtclass->quirks &= ~MT_QUIRK_VALID_IS_INRANGE; - mtclass->quirks &= ~MT_QUIRK_VALID_IS_CONFIDENCE; - } + if (id->vendor == HID_ANY_ID && id->product == HID_ANY_ID) + mt_post_parse_default_settings(td); td->slots = kzalloc(td->maxcontacts * sizeof(struct mt_slot), GFP_KERNEL); @@ -999,6 +1007,8 @@ static const struct hid_device_id mt_devices[] = { HID_USB_DEVICE(USB_VENDOR_ID_XIROKU, USB_DEVICE_ID_XIROKU_CSR2) }, + /* Generic MT device */ + { HID_DEVICE(HID_BUS_ANY, HID_GROUP_MULTITOUCH, HID_ANY_ID, HID_ANY_ID) }, { } }; MODULE_DEVICE_TABLE(hid, mt_devices); |