Currently linux HID gadgets do not support remote wakeup (the ability to wake up a host from suspend). This is an important feature for gadgets that want to properly emulate the normal operation of a mouse and keyboard. Ultimately, This feature has to be enabled/supported by the underlying UDC driver to have any impact.
Signed-off-by: Abdulhadi Mohamed <[email protected]> --- drivers/usb/gadget/function/f_hid.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/usb/gadget/function/f_hid.c b/drivers/usb/gadget/function/f_hid.c index c60b882..eeb01bd 100644 --- a/drivers/usb/gadget/function/f_hid.c +++ b/drivers/usb/gadget/function/f_hid.c @@ -339,6 +339,7 @@ static ssize_t f_hidg_write(struct file *file, const char __user *buffer, size_t count, loff_t *offp) { struct f_hidg *hidg = file->private_data; + struct usb_composite_dev *cdev = hidg->func.config->cdev; struct usb_request *req; unsigned long flags; ssize_t status = -ENOMEM; @@ -346,6 +347,7 @@ static ssize_t f_hidg_write(struct file *file, const char __user *buffer, if (!access_ok(VERIFY_READ, buffer, count)) return -EFAULT; + usb_gadget_wakeup(cdev->gadget); spin_lock_irqsave(&hidg->write_spinlock, flags); #define WRITE_COND (!hidg->write_pending) -- 2.9.3 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
