From 7dd8db68949a7acc5bd528ee0ecb8f8720f49921 Mon Sep 17 00:00:00 2001 From: Benjamin Tissoires Date: Fri, 12 Oct 2018 16:05:25 +0200 Subject: [PATCH] HID: alps: allow incoming reports when only the trackstick is opened If userspace only reads the trackstick node, and no one is listening to the touchpad nor the hidraw node then, the device is not powered on. Add open/close callbacks to allow users to disable the touchpad in Gnome while keeping the trackstick active. Link: https://bugzilla.redhat.com/show_bug.cgi?id=1559632 Link: https://gitlab.gnome.org/GNOME/mutter/issues/128 Signed-off-by: Benjamin Tissoires Signed-off-by: Jiri Kosina --- drivers/hid/hid-alps.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/drivers/hid/hid-alps.c b/drivers/hid/hid-alps.c index aec253b44156..3cd7229b6e54 100644 --- a/drivers/hid/hid-alps.c +++ b/drivers/hid/hid-alps.c @@ -660,6 +660,20 @@ exit: return ret; } +static int alps_sp_open(struct input_dev *dev) +{ + struct hid_device *hid = input_get_drvdata(dev); + + return hid_hw_open(hid); +} + +static void alps_sp_close(struct input_dev *dev) +{ + struct hid_device *hid = input_get_drvdata(dev); + + hid_hw_close(hid); +} + static int alps_input_configured(struct hid_device *hdev, struct hid_input *hi) { struct alps_dev *data = hid_get_drvdata(hdev); @@ -733,6 +747,10 @@ static int alps_input_configured(struct hid_device *hdev, struct hid_input *hi) input2->id.version = input->id.version; input2->dev.parent = input->dev.parent; + input_set_drvdata(input2, hdev); + input2->open = alps_sp_open; + input2->close = alps_sp_close; + __set_bit(EV_KEY, input2->evbit); data->sp_btn_cnt = (data->sp_btn_info & 0x0F); for (i = 0; i < data->sp_btn_cnt; i++)