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List:       freedesktop-libdlo
Subject:    [Libdlo] DL vendor descriptor separate from config desc?
From:       bernie () plugable ! com (Bernie Thompson)
Date:       2010-12-13 19:53:03
Message-ID: AANLkTimhJeHQs-_XEZOQyQTCF3Dom_X+bRVpD0Qu+tq6 () mail ! gmail ! com
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Hi Andrew,

On Mon, Dec 13, 2010 at 11:32 AM, Andrew Kephart <akephart at akephart.org> wrote:
>? No problem. ?The config should be attached (output from lsusb -v -v),
> and I'll start working up a patch for pulling from the config descriptor
> if found.

Thanks for emailing the lsusb output. Actually, I think udlfb just
isn't handling composite devices properly yet (e.g. the need for your
vendor/class match patch).  I see the extended vendor-specific
DisplayLink info is in the interface descriptor on this device.  So it
seems like there should be some better way for udlfb to know whether
it is representing a USB device or a USB interface, and when it
queries for the descriptor, get the appropriate one.

But I haven't dug in to really understand this area, as I didn't have
composite devices in my test mix.  Thanks for taking a look at this,
Andrew.

Bernie

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