[U-Boot] [PATCH] Fix usb buffer size for large descriptor of devices

[Marek Vasut <marex@denx.de>]

Dear Nicolas Chauvet,

> scanning bus 0 for devices...
> usb_get_configuration_no: failed to get descriptor - too long: 943
> 
> This was experienced on toshiba ac100 aka paz00, when discovering
> the webcam.
> 
> This patch is probably wrong, as it raise the buffer for all usb.
> Instead it could probably be raised only per target system of maybe
> per kind of devices

It'd be nice to CC me, it'd greatly raise your chance of getting a reply.

btw. why dont you allocate it dynamically then?

> ---
>  common/usb.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/common/usb.c b/common/usb.c
> index 6fc0fc1..46f5ce5 100644
> --- a/common/usb.c
> +++ b/common/usb.c
> @@ -68,7 +68,7 @@
>  #define USB_PRINTF(fmt, args...)	debug_cond(USB_DEBUG, fmt, ##args)
>  #define USB_HUB_PRINTF(fmt, args...)	debug_cond(USB_HUB_DEBUG, fmt,
> ##args)
> 
> -#define USB_BUFSIZ	512
> +#define USB_BUFSIZ	1024
> 
>  static struct usb_device usb_dev[USB_MAX_DEVICE];
>  static int dev_index;

Best regards,
Marek Vasut