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HID: ll_driver: Extend the interface with idle requests

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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 <[email protected]>
Reviewed-by: David Herrmann <[email protected]>
Signed-off-by: Jiri Kosina <[email protected]>
This commit is contained in:
Benjamin Tissoires 2013-02-27 16:38:17 +01:00 • committed by Jiri Kosina
commit 9684819b5a
2 changed files with 34 additions and 0 deletions
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15
drivers/hid/usbhid/hid-core.c
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@ -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)