From: "Frank Schäfer" <fschaefer.oss@googlemail.com>
To: Jean-Francois Thibert <jfthibert@google.com>
Cc: Linux Media Mailing List <linux-media@vger.kernel.org>
Subject: Re: [PATCH] Add support for KWorld UB435-Q V2
Date: Thu, 10 Oct 2013 15:38:18 +0200 [thread overview]
Message-ID: <5256ADCA.2020005@googlemail.com> (raw)
In-Reply-To: <CACxGHmN6Vj9sN1XB7W6-24MLCarSvhpxyMYNZHin5+uB9Rr6rQ@mail.gmail.com>
Am 09.10.2013 15:48, schrieb Jean-Francois Thibert:
> On Tue, Oct 8, 2013 at 12:24 PM, Frank Schäfer
> <fschaefer.oss@googlemail.com> wrote:
>>> This adds support for the UB435-Q V2. It seems that you might need to
>>> use the device once with the official driver to reprogram the device
>>> descriptors. Thanks to Jarod Wilson for the initial attempt at adding
>>> support for this device.
>> Could you please elaborate on this ?
>> What's the "official" driver and what changes after using it ?
>> Are these changes permanent ?
> From what I understand the Windows driver provided by KWorld will reprogram
> the eeprom so that the device descriptors are properly describing an Isochronous
> endpoint instead of Bulk. This only needs to be done once since it is permanent.
> I don't know if this is required since I don't have a device in the other state.
What do you mean with "properly describing an Isoc endpoint" ?
Did the Windows driver reprogram the device to provide an isoc instead
of a bulk video endpoint ?
Or did the device have no video endpoint and the bulk endpoint was used
for something different (likely device programming) ?
Any chance to get lsusb outputs ?
If you don't have a device in the other state and didn't test the bulk
endpoint's, how did you notice this issue ?
Regards,
Frank
>
>> The commit message should be included in the patch and not be sent as a
>> separate message.
>> Can you fix the patch and resend it ?
> Sure, I will resend the patch with the message included.
>
> Regards
> Jean-Francois
prev parent reply other threads:[~2013-10-10 13:38 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-30 0:45 [PATCH] Add support for KWorld UB435-Q V2 Jean-Francois Thibert
2013-09-30 0:45 ` Jean-Francois Thibert
2013-10-08 16:24 ` Frank Schäfer
2013-10-09 13:48 ` Jean-Francois Thibert
2013-10-10 13:38 ` Frank Schäfer [this message]
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