Re: [Qemu-devel] [PATCH V1] Re-attach usb device to kernel while usb_host_open fails

[Gonglei <arei.gonglei@huawei.com>]

On 2015/6/24 11:39, Lin Ma wrote:
> Changes in V1:
> For avoiding regression issue, Dont remove the usb device from global hostdevs list while
> usb speed mismatch occurs.
> 
> Signed-off-by: Lin Ma <lma@suse.com>
> ---

The changing remarks should be lay up here,
and use v2 suffix instead of v1.

If you do this, you can add my R-by.
	Reviewed-by: Gonglei <arei.gonglei@huawei.com>

Please refer to:
http://wiki.qemu.org/Contribute/SubmitAPatch

Regards,
-Gonglei

>  hw/usb/host-libusb.c | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/hw/usb/host-libusb.c b/hw/usb/host-libusb.c
> index bc2944c..11429f5 100644
> --- a/hw/usb/host-libusb.c
> +++ b/hw/usb/host-libusb.c
> @@ -889,6 +889,9 @@ static int usb_host_open(USBHostDevice *s, libusb_device *dev)
>  fail:
>      trace_usb_host_open_failure(bus_num, addr);
>      if (s->dh != NULL) {
> +        usb_host_release_interfaces(s);
> +        libusb_reset_device(s->dh);
> +        usb_host_attach_kernel(s);
>          libusb_close(s->dh);
>          s->dh = NULL;
>          s->dev = NULL;
>