Re: [RESEND/PATCH 5/6] USB: musb-gadget: complete request only if data is transfered over

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

 



Hello.

On 15-09-2010 14:05, Felipe Balbi wrote:

I didn't say it was duplicate for DMA, just too late.

how come ? we need to send ZLP before giving back the request.

Well, look at the code ionce again. We need to send ZLP *after* request->actual == request->length, but as the check is inserted after the ZLP send, ZLP *may* be sent once the first DMA completes, not the last.

WBR, Sergei
--
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