Commit efc493f9 authored by Jiri Kosina's avatar Jiri Kosina
Browse files

USB HID: provide hook for hidraw write()



Add hook in usbhid for write() callback from hidraw. Sends the
report to the device through control pipe.
Signed-off-by: default avatarJiri Kosina <jkosina@suse.cz>
parent d773b339
......@@ -628,6 +628,28 @@ static int hid_alloc_buffers(struct usb_device *dev, struct hid_device *hid)
return 0;
}
static int usbhid_output_raw_report(struct hid_device *hid, __u8 *buf, size_t count)
{
struct usbhid_device *usbhid = hid->driver_data;
struct usb_device *dev = hid_to_usb_dev(hid);
struct usb_interface *intf = usbhid->intf;
struct usb_host_interface *interface = intf->cur_altsetting;
int ret;
ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
HID_REQ_SET_REPORT,
USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE,
cpu_to_le16(((HID_OUTPUT_REPORT + 1) << 8) | *buf),
interface->desc.bInterfaceNumber, buf + 1, count - 1,
USB_CTRL_SET_TIMEOUT);
/* count also the report id */
if (ret > 0)
ret++;
return ret;
}
static void hid_free_buffers(struct usb_device *dev, struct hid_device *hid)
{
struct usbhid_device *usbhid = hid->driver_data;
......@@ -871,6 +893,7 @@ static struct hid_device *usb_hid_configure(struct usb_interface *intf)
hid->hiddev_hid_event = hiddev_hid_event;
hid->hiddev_report_event = hiddev_report_event;
#endif
hid->hid_output_raw_report = usbhid_output_raw_report;
return hid;
fail:
......
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