On Sat, Feb 23, 2002 at 07:17:58PM +0530, Phani Ram wrote:
>
> hi,
> While trying isochronous data over bluetooth , i am getting the following
> message on the sending side.
> The kernel version is 2.4.14.
>
> usb-uhci ====>In function process_iso( )
>
> usb-uhci: process_iso: 0: len :49 02000030 status 0
> usb-uhci: process_iso: 1: len :49 02000030 status 0
> usb-uhci: process_iso: 2: len :49 02000030 status 0
> usb-uhci: process_iso: 3: len :49 02000030 status 0
> usb-uhci: process_iso: 4: len :49 02000030 status 0
> usb-uhci: process_iso : exit 5 (0) , actual_len 245
>
> Does it mean the data has been submitted correctly to the usb bluetooth
> hardware (since status is 0)??
At least the host controller sent it successfully over USB, there were no
DMA problems etc. _BUT_ isochronous transfers have no acknowledge and retry
on errors, so the host controller can't say if the data really reached your
device or was processed correctly there.
> If so, why i am not seeing anything on the receiving side ?? Which place is
> the Entry Point for Isoc on the receiving side in usb-uhci.c ... ??
The same function (process_iso), of course you have to issue URBs for the
continous reception of isochronous transfers.
--
Georg Acher, [EMAIL PROTECTED]
http://www.in.tum.de/~acher/
"Oh no, not again !" The bowl of petunias
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