[linux-dvb] em28xx frontend does not attach

[Elio Voci]

Thanks Mauro.
With time I'll try.
For the time being, I am using the mcentral driver em28xx_new, which
runs seamlessly.

Regards

Elio
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Elio Voci <elio.voci at gmail.com>
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On Fri, 2009-01-02 at 14:10 -0200, Mauro Carvalho Chehab wrote:

> On Fri, 02 Jan 2009 14:09:00 +0100
> Elio Voci <elio.voci at gmail.com> wrote:
> 
> > Hello.
> > 
> > I have recently upgraded my Debian Lenny from kernel 2.6.25 to 2.6.26.
> > After this, I couldn't use my Cinergy Hybrid T USB XS (0ccd:0042).
> > Up to now I used the mcentral.de driver, now I would like to switch to
> > linuxtv driver.
> > 
> > Following the wiki "How to install DVB device drivers, and "How to build
> > drivers from Mercurial", I have cloned v4l-dvb. Make and install ran
> > smoothly.
> > I have generated the firmware from
> > http://www.steventoth.net/linux/xc5000/HVR-12x0-14x0-17x0_1_25_25271_WHQL.zip, Driver85/hcw85bda.sys
> > 
> > em28xx installed correctly, dvb frontend did not: zl10353_read_register
> > returned -19
> > Below the relevant dmesg section (em28xx modprobed with core_debug=1
> > 
> 
> It is probably not that complicated for you to fix the Cinergy Hybrid entry at
> v4l-dvb.
> 
> You'll need to use usbsnoop tool to capture what the original driver is doing
> [1]. 
> 
> After that, you can parse the log and fix the initialization values for
> GPIO and GPO registers. You can also load em28xx with reg_dump=1 and parse the
> dmesg output with the em28xx parser, comparing to what the windows driver did.
> 
> [1] http://www.linuxtv.org/wiki/index.php/Bus_snooping/sniffing#Snooping_Procedures:
> 
> 
> Cheers,
> Mauro
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