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| author |   Jiri Kosina <jkosina@suse.cz> | 2007-05-14 09:54:30 +0200 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2007-10-14 14:47:26 +0200 |
| commit | efc493f9d5463d933a64a2758fbe6d9bb8300cbb (patch) | |
| tree | 09f787fde23300b3b332cd2d1f352b677af28460 /drivers | |
| parent | Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband (diff) | |
| download | linux-dev-efc493f9d5463d933a64a2758fbe6d9bb8300cbb.tar.xz linux-dev-efc493f9d5463d933a64a2758fbe6d9bb8300cbb.zip | |
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: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/hid/usbhid/hid-core.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/drivers/hid/usbhid/hid-core.c b/drivers/hid/usbhid/hid-core.c index 0a1f2b52a12f..74b817d7968d 100644 --- a/drivers/hid/usbhid/hid-core.c +++ b/drivers/hid/usbhid/hid-core.c @@ -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: |