[linux-dvb] Re: Patch for Yuan PD300 mini

Ben Woods woodsb02 at gmail.com
Tue Oct 10 04:35:24 CEST 2006


I think I have created a successful patch now.

There are 2 versions... one which defines a new device in dt200u.c in the
static struct dvb_usb_device_properties wt220u_properties
struct... and one which just adds an additional cold id to the already
existing device.

Which is a better method?

Could the better patch please be tested and applied if ok?


On 10/10/06, Michael Krufky <mkrufky at linuxtv.org> wrote:
> On 10/8/06, Gunther Mayer <gunther.mayer at gmx.net> wrote:
> > Ben Woods wrote:
> > > This patch fixes the cold boot id for the Yuan PD300 mini USB pen.
> > > It can be applied with the following command from within the v4l-dvb
> > > directory:
> > > patch -p1 < /path/to/yuan.patch
> > >
> > > When using this card, you need to have the dvb-usb-wt220u-02.fw
> > > firmware file in the correct directory (eg. /lib/firmware/`uname
> > > -r`/).
> > >
> > > Can this patch be tested by folk and then hopefully applied?
> > No. Your patch breaks cards with ID 0x222.
> Ben Woods wrote:
> > Ok - i see.
> >
> > Is there anyway we can include the correct cold boot id for my device
> > without breaking it for other devices? mkrufky - you were quite
> > helpful with this once before... any ideas?
> It's rather simple, actually.  Rather than replacing the current pid with yours, what you need to do
> is add an additional pid to dvb-usb-ids.h.  Then add the new id's to the driver's usb table, reference
> them in the device properties, and increase num_device_descs.
> For example, the changeset in the following link does just what you're trying to do now, but with a
> different device:
> http://www.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=ac9ffb90b8d0d28e3d9e5b5a045ee870a6269b5f
> In your case, you are creating a new entry, using 0x220 as the cold id, and 0x221 as the warm id.  Since
> that warm idea is already recognized by the driver, you only have to add the missing cold id.
> Your patch should look very similar to the one in the link above.
> Hope this helps,
> Mike

From: Benjamin Woods
woodsb02 at gmail.com
Registered Linux User #372573
Registered Ubuntu User # 6395
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