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authorBenjamin Tissoires <benjamin.tissoires@redhat.com>2013-02-27 16:38:17 +0100
committerJiri Kosina <jkosina@suse.cz>2013-03-07 15:58:17 +0100
commit9684819b5a29e62acd8265a92d8f3454de9bb71e (patch)
tree8b2da81d84a83ffe794f404cc547e6e8f5c7beef /drivers/hid
parent777d4bb39a585ff54817815544941c2da70a0bb9 (diff)
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.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/hid/usbhid/hid-core.c b/drivers/hid/usbhid/hid-core.c
index 420466bc481..effcd3d6f5c 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)