diff options
| author | Benjamin Tissoires <benjamin.tissoires@redhat.com> | 2013-02-27 16:38:17 +0100 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2013-03-07 15:58:17 +0100 |
| commit | 9684819b5a29e62acd8265a92d8f3454de9bb71e (patch) | |
| tree | 8b2da81d84a83ffe794f404cc547e6e8f5c7beef /drivers/hid | |
| parent | 777d4bb39a585ff54817815544941c2da70a0bb9 (diff) | |
| download | linux-9684819b5a29e62acd8265a92d8f3454de9bb71e.tar.gz | |
HID: ll_driver: Extend the interface with idle requests
Some drivers send the idle command directly to underlying device, creating an unwanted dependency on the underlying transport layer. This patch adds hid_hw_idle() to the interface, thereby removing usbhid from the lion share of the drivers. Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Reviewed-by: David Herrmann <dh.herrmann@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/hid')
| -rw-r--r-- | drivers/hid/usbhid/hid-core.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/hid/usbhid/hid-core.c b/drivers/hid/usbhid/hid-core.c index 420466bc481a..effcd3d6f5cf 100644 --- a/drivers/hid/usbhid/hid-core.c +++ b/drivers/hid/usbhid/hid-core.c @@ -1253,6 +1253,20 @@ static void usbhid_request(struct hid_device *hid, struct hid_report *rep, int r } } +static int usbhid_idle(struct hid_device *hid, int report, int idle, + int reqtype) +{ + struct usb_device *dev = hid_to_usb_dev(hid); + struct usb_interface *intf = to_usb_interface(hid->dev.parent); + struct usb_host_interface *interface = intf->cur_altsetting; + int ifnum = interface->desc.bInterfaceNumber; + + if (reqtype != HID_REQ_SET_IDLE) + return -EINVAL; + + return hid_set_idle(dev, ifnum, report, idle); +} + static struct hid_ll_driver usb_hid_driver = { .parse = usbhid_parse, .start = usbhid_start, @@ -1263,6 +1277,7 @@ static struct hid_ll_driver usb_hid_driver = { .hidinput_input_event = usb_hidinput_input_event, .request = usbhid_request, .wait = usbhid_wait_io, + .idle = usbhid_idle, }; static int usbhid_probe(struct usb_interface *intf, const struct usb_device_id *id) |