On Tuesday 14 June 2005 6:27 am, jon wrote:
> I have now got a test bed with 4 machines. 2 running the latest kernel
> 2.6.11.4-21.7-default and one running 2.6.4 and 2.6.8 
> 
> I can clear up the first issue and confirm that all machines using my
> driver fail with the USB 2.0 hub so that has been thrown out

That's excessive.  The hub probably works fine.  You did notice that
in order to get any EHCI full-speed ISO IN support, you needed to
enable a kernel option that's labeled as EXPERIMENTAL, didn't you?


> and all tests are with the   
> device plugged into the machine.
> 
> the earlier kernels work fine with my device. The 2.6.11 machines 
> fail with the following trace. Any hints would be most welcome 
> 
> 
> Thanks 
> 
> Jonathan
> 
> 
> 
> Jun 14 08:40:36 skydriver-driver.c: XXXXXX sky_open
> Jun 14 08:40:46 skydriver-driver.c:  Sky Read 4096
> Jun 14 08:40:46 skydriver-driver.c:  pipesize 128
> Jun 14 08:40:46 skydriver-driver.c:  Sky Read 1
> Jun 14 08:40:46 skydriver-driver.c: B4 Assignment Sky Read 4096
> Jun 14 08:40:46 skydriver-driver.c: 
> dev->read_urb[dev->readURB]->transfer_buffer_length 128
> Jun 14 08:40:46 skydriver-driver.c:  Sky Read  set up urbs
> Jun 14 08:40:46 skydriver-driver.c:  Sky Read  submit 0, ret 0, URB No 0
> ...
> Jun 14 08:40:46 skydriver-driver.c: B4 Assignment Sky Read 4096
> Jun 14 08:40:46 skydriver-driver.c: 
> dev->read_urb[dev->readURB]->transfer_buffer_length 128
> Jun 14 08:40:46 skydriver-driver.c:  Sky Read  set up urbs
> Jun 14 08:40:46 skydriver-driver.c:  Sky Read  submit 3, ret 0, URB No 3
> Jun 14 08:40:46 skydriver-driver.c:  Sky Read B4 Sleep Count 4096
> Jun 14 08:40:46 skydriver-driver.c:  Sky Read  After sleep
> Jun 14 08:40:46 skydriver-driver.c:  Callback !!!!
> Jun 14 08:40:46 skydriver-driver.c: sky_read_loop: corrupted packet status: 
> -84

where "-84" presumably (x86) means EILSEQ ... did you check
what Documentation/usb/error-codes.txt says about that?

> Jun 14 08:40:46 skydriver-driver.c:  packets 0
> Jun 14 08:40:46 skydriver-driver.c: Sub Count 3
> Jun 14 08:40:46 skydriver-driver.c:  Callback !!!!
> Jun 14 08:40:46 skydriver-driver.c: sky_read_loop: corrupted packet status: 
> -84
> Jun 14 08:40:46 skydriver-driver.c:  packets 0
> Jun 14 08:40:46 skydriver-driver.c: Sub Count 2
> Jun 14 08:40:46 skydriver-driver.c:  Callback !!!!
> 
> 
> etc
> 
> 


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