From: Roger Quadros <rogerq@ti.com>
To: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>, <balbi@ti.com>
Cc: <linux-usb@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
"3.9+" <stable@vger.kernel.org>,
Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Subject: Re: [PATCH] usb: gadget: zero: Fix SuperSpeed enumeration for alternate setting 1
Date: Wed, 26 Mar 2014 16:42:33 +0200 [thread overview]
Message-ID: <5332E759.20007@ti.com> (raw)
In-Reply-To: <5332D0C8.5040300@cogentembedded.com>
On 03/26/2014 03:06 PM, Sergei Shtylyov wrote:
> Hello.
>
> On 26-03-2014 13:28, Roger Quadros wrote:
>
>> It was impossible to enumerate on a SuperSpeed (XHCI) host
>> with alternate setting = 1 due to the wrongly set 'bMaxBurst'
>> field in the SuperSpeed Endpoint Companion descriptor.
>
>> Testcase:
>> <host> modprobe -r usbtest; modprobe usbtest alt=1
>> <device> modprobe g_zero
>> plug device to SuperSpeed port on the host.
>
>> Without this patch the host always complains like so
>> "usb 12-2: Not enough bandwidth for new device state.
>> usb 12-2: Not enough bandwidth for altsetting 1"
>
>> Bug was introduced by commit cf9a08ae in v3.9
>
> Please also specify that commit's summary in parens. Also, there's now an adopted standard way of saying this:
>
> Fixes: <12-digit SHA ID> ("<summary line>")
>
Right. will send a v2. Thanks.
cheers,
-roger
next prev parent reply other threads:[~2014-03-26 14:42 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-26 9:28 [PATCH] usb: gadget: zero: Fix SuperSpeed enumeration for alternate setting 1 Roger Quadros
2014-03-26 10:50 ` Sebastian Andrzej Siewior
2014-03-26 13:06 ` Sergei Shtylyov
2014-03-26 14:42 ` Roger Quadros [this message]
2014-03-26 16:46 ` [PATCH v2] " Roger Quadros
2014-04-22 12:28 ` Roger Quadros
2014-04-22 12:35 ` Roger Quadros
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