linux-kernel - Re: [Patch v2] usb: hcd.h: Fix the values of SetHubDepth and GetPortErrorCount to match USB 3.1 specification

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Message-ID: <CAFDyS3Nc+qW=1qKfFwL2ekW5c4d2gbOzJxW786K-hXxYsu61MA@mail.gmail.com>
Date:	Fri, 7 Aug 2015 21:15:18 +0300
From:	Tal Shorer <tal.shorer@...il.com>
To:	"<gregkh@...uxfoundation.org>" <gregkh@...uxfoundation.org>
Cc:	USB list <linux-usb@...r.kernel.org>,
	"<linux-kernel@...r.kernel.org>" <linux-kernel@...r.kernel.org>,
	Tal Shorer <tal.shorer@...il.com>
Subject: Re: [Patch v2] usb: hcd.h: Fix the values of SetHubDepth and
 GetPortErrorCount to match USB 3.1 specification

Please ignore v2, I missed that you

On Fri, Aug 7, 2015 at 9:13 PM, Tal Shorer <tal.shorer@...il.com> wrote:
> From the usb 3.1 spec available at http://www.usb.org/developers/docs/
> table 10-7 (Hub Class Requests) specifies the values for SetHubDepth and
> GetPortErrorCount as:
>
> Request bmRequestType bRequest wValue wIndex wLength Data
> SetHubDepth 00100000B SET_HUB_DEPTH Hub Depth Zero Zero None
> GetPortErrorCount 10100011B GET_PORT_ERR_COUNT Zero Port Two Number of Link
>         Errors on this port
>
> Fix these two values to match the spec.
>
> Signed-off-by: Tal Shorer <tal.shorer@...il.com>
> ---
>  include/linux/usb/hcd.h | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/include/linux/usb/hcd.h b/include/linux/usb/hcd.h
> index c9aa779..d2784c1 100644
> --- a/include/linux/usb/hcd.h
> +++ b/include/linux/usb/hcd.h
> @@ -564,9 +564,9 @@ extern void usb_ep0_reinit(struct usb_device *);
>
>  /*-------------------------------------------------------------------------*/
>
> -/* class requests from USB 3.0 hub spec, table 10-5 */
> -#define SetHubDepth            (0x3000 | HUB_SET_DEPTH)
> -#define GetPortErrorCount      (0x8000 | HUB_GET_PORT_ERR_COUNT)
> +/* class requests from USB 3.1 hub spec, table 10-7 */
> +#define SetHubDepth            (0x2000 | HUB_SET_DEPTH)
> +#define GetPortErrorCount      (0xa300 | HUB_GET_PORT_ERR_COUNT)
>
>  /*
>   * Generic bandwidth allocation constants/support
> --
> 2.4.6
>
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