4.4-stable review patch. If anyone has any objections, please let me know. ------------------ From: Terry Junge <terry.junge@xxxxxxxxxxxxxxx> [ Upstream commit 37e376df5f4993677c33968a0c19b0c5acbf1108 ] Add a mapping for Push-To-Talk joystick trigger button. Tested on ChromeBox/ChromeBook with various Plantronics devices. Signed-off-by: Terry Junge <terry.junge@xxxxxxxxxxxxxxx> Signed-off-by: Jiri Kosina <jkosina@xxxxxxx> Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/hid/hid-plantronics.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) --- a/drivers/hid/hid-plantronics.c +++ b/drivers/hid/hid-plantronics.c @@ -2,7 +2,7 @@ * Plantronics USB HID Driver * * Copyright (c) 2014 JD Cole <jd.cole@xxxxxxxxxxxxxxx> - * Copyright (c) 2015 Terry Junge <terry.junge@xxxxxxxxxxxxxxx> + * Copyright (c) 2015-2018 Terry Junge <terry.junge@xxxxxxxxxxxxxxx> */ /* @@ -48,6 +48,10 @@ static int plantronics_input_mapping(str unsigned short mapped_key; unsigned long plt_type = (unsigned long)hid_get_drvdata(hdev); + /* special case for PTT products */ + if (field->application == HID_GD_JOYSTICK) + goto defaulted; + /* handle volume up/down mapping */ /* non-standard types or multi-HID interfaces - plt_type is PID */ if (!(plt_type & HID_USAGE_PAGE)) {