Re: [PATCH] Support faulty USB IDs on DIBUSB_MC

[matthieu castet <castet.matthieu@free.fr>]

Hi Patrick,

Patrick Boettcher wrote:
> Hi,
> 
> sorry for not answering ealier, recently I became the master of 
> postponing things. :(
> 
> On Thu, 29 Jan 2009, Mauro Carvalho Chehab wrote:
> 
>>> +/* 14 */    { USB_DEVICE(USB_VID_CYPRESS,        
>>> USB_PID_ULTIMA_TVBOX_USB2_FX_COLD) },
>>> +#endif
>>
>> It doesn't sound a very good approach the need of recompiling the 
>> driver to
>> allow it to work with a broken card. The better would be to have some 
>> modprobe
>> option to force it to accept a certain USB ID as a valid ID for the card.
> 
> The most correct way would be to reprogram the eeprom, by simply writing 
> to 0xa0 (0x50 << 1) I2C address... There was a thread on the linux-dvb 
> some time ago.
> 
Why not, I only don't want to maintain a patch for my device.

I wonder why didn't they use WP pin of the eeprom to avoid write.

Do you know what should be written.
After a quick search, I found [1]. Is that ok ?


Matthieu

[1]
EEPROM Address            Contents
       0        0xC0
       1        Vendor ID (VID) L
       2        Vendor ID (VID) H
       3        Product ID (PID) L
       4        Product ID (PID) H
       5        Device ID (DID) L
       6        Device ID (DID) H
       7        Configuration byte