Commit 0c218f14 authored Jul 05, 2011 by David Herrmann Committed by Jiri Kosina Jul 11, 2011

HID: wiimote: Add wiimote send function



The wiimote driver needs to send raw output reports to the wiimote
device. Otherwise we could not manage the peripherals of the wiimote
or perform memory operations on the wiimote.
We cannot use hidinput_input_event of the lowlevel hid driver, since
this does not accept raw input. Therefore, we need to use the same
function that hidraw uses to send output. Side effect is, the raw
output function is not buffered and can sleep.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

parent 4d36e975

drivers/hid/hid-wiimote.c

+19 −0

Original line number	Diff line number	Diff line
		@@ -26,6 +26,25 @@ struct wiimote_data {
		struct input_dev *input;
		};

		static ssize_t wiimote_hid_send(struct hid_device hdev, __u8 buffer,
		size_t count)
		{
		__u8 *buf;
		ssize_t ret;

		if (!hdev->hid_output_raw_report)
		return -ENODEV;

		buf = kmemdup(buffer, count, GFP_KERNEL);
		if (!buf)
		return -ENOMEM;

		ret = hdev->hid_output_raw_report(hdev, buf, count, HID_OUTPUT_REPORT);

		kfree(buf);
		return ret;
		}

		static int wiimote_input_event(struct input_dev *dev, unsigned int type,
		unsigned int code, int value)
		{