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Re: [Qemu-devel] [PATCH V1] Re-attach usb device to kernel while usb_hos
From: |
Gonglei |
Subject: |
Re: [Qemu-devel] [PATCH V1] Re-attach usb device to kernel while usb_host_open fails |
Date: |
Wed, 24 Jun 2015 11:53:13 +0800 |
User-agent: |
Mozilla/5.0 (Windows NT 6.1; rv:31.0) Gecko/20100101 Thunderbird/31.4.0 |
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 <address@hidden>
> ---
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 <address@hidden>
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;
>