Question on USB gadget device driver for mpc 8272 on linux 2.6.14.

Vitaly Bordug vbordug at ru.mvista.com
Fri Jan 27 23:43:23 EST 2006


Jonathan,

I have implemented the PQ2 usb-serial functionality a while ago, but the code needs a lot of cleanup, which is sometimes very tricky due to the tight timings required by this device. If you are interested, I can try to find the patch...

On Fri, 27 Jan 2006 11:45:39 +1100
"Jonathan Qiang" <jonathan at haliplex.com.au> wrote:

> Hi, all
>  
> Currently, I am doing on the USB gadget device driver for mpc8272, I
> already got some packets on interruption route when my board in which
> mpc82xx settled connect to Host.
> But the SOF is always generated as the first interruption source. When
> plugged USB cable in HOST, the USB controller will be set to reset
> (USBER is [0x308]), and after reset, the interruption source event
> changes its status to [0x108], which means running on IDLE and SOF.  Why
> It is not IN token?
> I already disabled Frame timer when I probe the USB gadget controller. 


-- 
Sincerely, 
Vitaly



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