From 0370d7cb30716b202b2412b9b2d4740fd3152d30 Mon Sep 17 00:00:00 2001 From: David Herrmann Date: Tue, 6 Sep 2011 13:50:37 +0200 Subject: HID: wiimote: Initialize IR cam on request Initialize the IR cam if the related input device is opened by userspace. Stop IR cam again if userspace is no longer interested in its data events. Signed-off-by: David Herrmann Signed-off-by: Jiri Kosina --- drivers/hid/hid-wiimote.c | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) (limited to 'drivers/hid') diff --git a/drivers/hid/hid-wiimote.c b/drivers/hid/hid-wiimote.c index 35dc293..6658398 100644 --- a/drivers/hid/hid-wiimote.c +++ b/drivers/hid/hid-wiimote.c @@ -668,6 +668,32 @@ static void wiimote_accel_close(struct input_dev *dev) hid_hw_close(wdata->hdev); } +static int wiimote_ir_open(struct input_dev *dev) +{ + struct wiimote_data *wdata = input_get_drvdata(dev); + int ret; + + ret = hid_hw_open(wdata->hdev); + if (ret) + return ret; + + ret = wiimote_init_ir(wdata, WIIPROTO_FLAG_IR_BASIC); + if (ret) { + hid_hw_close(wdata->hdev); + return ret; + } + + return 0; +} + +static void wiimote_ir_close(struct input_dev *dev) +{ + struct wiimote_data *wdata = input_get_drvdata(dev); + + wiimote_init_ir(wdata, 0); + hid_hw_close(wdata->hdev); +} + static void handler_keys(struct wiimote_data *wdata, const __u8 *payload) { input_report_key(wdata->input, wiiproto_keymap[WIIPROTO_KEY_LEFT], @@ -1062,6 +1088,8 @@ static struct wiimote_data *wiimote_create(struct hid_device *hdev) goto err_ir; input_set_drvdata(wdata->ir, wdata); + wdata->ir->open = wiimote_ir_open; + wdata->ir->close = wiimote_ir_close; wdata->ir->dev.parent = &wdata->hdev->dev; wdata->ir->id.bustype = wdata->hdev->bus; wdata->ir->id.vendor = wdata->hdev->vendor; -- cgit v1.1