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usb: gadget: configfs: send connect detective event when get descriptor

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In current code, the connect detective event will be send before the
connect state of controller change. The event is sent when receive
the first setup packet and the connect state of controller is changed
when receive set address command. So if disconnect interrupt trigger
between the first setup packet and set address command, the disconnect
process will not be done, while the application state has been changed
and keep in connected. As a result, the UI may still show the USB connect
option event if the device has been disconnect from PC. This patch send
the connect uevent when get descriptor of configuration which follow
set address command to make sure the application state change after
controller.

Change-Id: Icf2124327db93687b4b644672edb0dbecc8f127a
Signed-off-by: Meng Dongyang <daniel.meng@rock-chips.com>
This commit is contained in:
Meng Dongyang
2018-03-28 15:41:53 +08:00
committed by Tao Huang
parent 6bcccf1b5b
commit fe8c3cd311
1 changed files with 2 additions and 1 deletions
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3
drivers/usb/gadget/configfs.c
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@@ -1487,7 +1487,8 @@ static int android_setup(struct usb_gadget *gadget,
struct usb_function_instance *fi;
spin_lock_irqsave(&cdev->lock, flags);
if (!gi->connected) {
if (c->bRequest == USB_REQ_GET_DESCRIPTOR &&
(c->wValue >> 8) == USB_DT_CONFIG && !gi->connected) {
gi->connected = 1;
schedule_work(&gi->work);
}