| Message ID | 20210517060145.32359-1-maqianga@uniontech.com |
|---|---|
| State | New |
| Headers | show |
| Series | HID: usbhid: enable remote wakeup for mouse | expand |
Am Donnerstag, den 20.05.2021, 14:40 +0800 schrieb 马强: > This is caused by external reasons, as the kernel cannot sense > whether it is accidentally triggered or actively triggered. > If this kind of unintentional situation is avoided, > the keyboard should also be disabled wakeup by default. > Otherwise, the normally used computer may be awakened > by someone else accidentally pressing the keyboard on standby. > The kernel has to manage keyboards. There just is no genuine keyboard device user space could open, nor could we do sysrq or sak if we left the keyboard fully to user space. Hence keyboards are a special case unfortunately. We will have to live with two classes of wakeup, keyboards and power buttons on the one hand, versus everything else. Regards Oliver
diff --git a/drivers/hid/usbhid/hid-core.c b/drivers/hid/usbhid/hid-core.c index 86257ce6d619..592aa57a97f5 100644 --- a/drivers/hid/usbhid/hid-core.c +++ b/drivers/hid/usbhid/hid-core.c @@ -1186,11 +1186,13 @@ static int usbhid_start(struct hid_device *hid) * In addition, enable remote wakeup by default for all keyboard * devices supporting the boot protocol. */ - if (interface->desc.bInterfaceSubClass == USB_INTERFACE_SUBCLASS_BOOT && - interface->desc.bInterfaceProtocol == - USB_INTERFACE_PROTOCOL_KEYBOARD) { - usbhid_set_leds(hid); - device_set_wakeup_enable(&dev->dev, 1); + if (interface->desc.bInterfaceSubClass == USB_INTERFACE_SUBCLASS_BOOT) { + if (interface->desc.bInterfaceProtocol == USB_INTERFACE_PROTOCOL_KEYBOARD || + interface->desc.bInterfaceProtocol == USB_INTERFACE_PROTOCOL_MOUSE) { + if (interface->desc.bInterfaceProtocol == USB_INTERFACE_PROTOCOL_KEYBOARD) + usbhid_set_leds(hid); + device_set_wakeup_enable(&dev->dev, 1); + } } mutex_unlock(&usbhid->mutex); diff --git a/drivers/hid/usbhid/usbmouse.c b/drivers/hid/usbhid/usbmouse.c index 073127e65ac1..cf785369a5ed 100644 --- a/drivers/hid/usbhid/usbmouse.c +++ b/drivers/hid/usbhid/usbmouse.c @@ -188,6 +188,7 @@ static int usb_mouse_probe(struct usb_interface *intf, const struct usb_device_i goto fail3; usb_set_intfdata(intf, mouse); + device_set_wakeup_enable(&dev->dev, 1); return 0; fail3:
This patch enables remote wakeup by default for USB mouse devices. Mouse in general are supposed to be wakeup devices, but the correct place to enable it depends on the device's bus; no single approach will work for all mouse devices. In particular, this covers only USB mouse (and then only those supporting the boot protocol). Signed-off-by: Qiang Ma <maqianga@uniontech.com> --- drivers/hid/usbhid/hid-core.c | 12 +++++++----- drivers/hid/usbhid/usbmouse.c | 1 + 2 files changed, 8 insertions(+), 5 deletions(-)