[PATCH 12/14] HID: wiimote: Initialize IR cam on request
flat view
STALE5526d
SUPERSEDED
From: David Herrmann <hidden>
Date: 2011-08-29 13:38:49
Subsystem:
hid core layer, the rest, wiimote hid driver · Maintainers:
Jiri Kosina, Benjamin Tissoires, Linus Torvalds, David Rheinsberg
Revision v1 of 3 in this series.
Revisions (3)
- v1
- v1 current
- v2 [diff vs current]
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 <redacted> --- drivers/hid/hid-wiimote.c | 28 ++++++++++++++++++++++++++++ 1 files changed, 28 insertions(+), 0 deletions(-)
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;
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1.7.6.1