Re: Question about patch musb: use dma mode 1 for TX if transfer size equals maxpacket

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Wed, Jun 29, 2011 at 5:40 PM, Felipe Balbi <balbi@xxxxxx> wrote:
> Hi,
>
> On Wed, Jun 29, 2011 at 05:36:19PM +0800, Bob Liu wrote:
>> I have a question about patch d1043a2697effee3054451a9293a376bfb013e4b
>> musb: use dma mode 1 for TX if transfer size equals maxpacket.
>>
>> Is this patch still needed on latest linux-next tree ?
>>
>> And in its comment Anand said a better fix might be in musb_g_tx(),
>> Can someone give me some guides on how to do it ?
>
> basically, the endpoint IRQ handler needs to be rewritten in musb, that
> thing is really broken.
>
>> Since dma1 mode can't work on my blackfin platform, I want to change
>> it back to mode0 when transfer size equals maxpacket.
>
> why can't it work ?
>

It seems a hardware Anomaly, I am not sure but i'll check it soon.

Thanks

-- 
Regards,
--Bob
--
To unsubscribe from this list: send the line "unsubscribe linux-usb" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Index of Archives]     [Linux Media]     [Linux Input]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [Old Linux USB Devel Archive]

  Powered by Linux