I am okay with this patch. Thank you.
Ben
> -Original Message-
> From: Gerd Hoffmann
> Sent: Friday, January 17, 2020 12:37 AM
> To: qemu-devel@nongnu.org
> Cc: f...@fysnet.net; Gerd Hoffmann
> Subject: [PATCH v2] uas: fix super speed bMaxPacketSize0
>
> For usb2 bMaxPacketSize0 is "n", for usb3 it is "1 << n", so it must be 9 not
> 64
> ...
>
> rom "Universal Serial Bus 3.1 Specification":
>
>If the device is operating at Gen X speed, the bMaxPacketSize0
>field shall be set to 09H indicating a 512-byte maximum packet.
>An Enhanced SuperSpeed device shall not support any other maximum
>packet sizes for the default control pipe (endpoint 0) control
>endpoint.
>
> We now announce a 512-byte maximum packet.
>
> Fixes: 89a453d4a5c ("uas-uas: usb3 streams")
> Reported-by: Benjamin David Lunt
> Signed-off-by: Gerd Hoffmann
> Reviewed-by: Philippe Mathieu-Daudé
> ---
> hw/usb/dev-uas.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/hw/usb/dev-uas.c b/hw/usb/dev-uas.c index
> 6d6d1073b907..1bc4dd4fafb8 100644
> --- a/hw/usb/dev-uas.c
> +++ b/hw/usb/dev-uas.c
> @@ -303,7 +303,7 @@ static const USBDescDevice desc_device_high = {
>
> static const USBDescDevice desc_device_super = {
> .bcdUSB= 0x0300,
> -.bMaxPacketSize0 = 64,
> +.bMaxPacketSize0 = 9,
> .bNumConfigurations= 1,
> .confs = (USBDescConfig[]) {
> {
> --
> 2.18.1
