On Fri, 3 Jun 2005, [big5] Enzo Chen (³¯¤Í¤h) wrote:
> finally, we wanna unlink the read_urb in the close function, and it blocks:
>
> mxu2s_close() {
> ......
> if(serial->dev) {
> printk("unlinking...\n");
> usb_unlink_urb(priv->read_urb);
You should call usb_kill_urb() instead of usb_unlink_urb(), if it is
available in your kernel.
> printk("unlink finished\n"); // <-- you'll never see
> this in kmsg
> }
> .......
> }
Alan Stern
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