Re: USB Bulk transfers

Re: USB Bulk transfers

[Dan Bethe]

	Hi there.  Can you guys suggest a USB card for PCI
bus, which is supported by MacOS and LinuxPPC?  The
exact model, and such, so that I can find it out there
somewhere.  Or a URL to such things!
	I've grepped the entire kernel tree, read all the
USB-related source code, and the LDP, but I haven't
found info on a non-motherboard USB interface!
	I would be interested in putting this into a PowerMac
7500 or something in that 7xxx series.  Any
suggestions or caveats?  Thank you for your time!

--- iweiny@pacbell.net wrote:
> 
> Has anyone done anything with the USB bulk
> transfers?
> 
> DETAILS:
> PowerMac 8500
> USB card and Mouse WORK!
> kernel 2.2.12 self compiled
> USB 2.3.29 code from Pauls rsync tree (modified for
> 2.2 kernel)


=====
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USB Bulk transfers

[iweiny]

Has anyone done anything with the USB bulk transfers?

DETAILS:
PowerMac 8500
USB card and Mouse WORK!
kernel 2.2.12 self compiled
USB 2.3.29 code from Pauls rsync tree (modified for 2.2 kernel)

I have a Kodak Digital camera (DC-265) and I would like to get the USB working
for it.  I have been in contact with many from Intel linux side who have gotten
it to work with the recent dc2xx.c driver in the 2.3.xx USB stack.

My problem spcifically is this.  The control messages seem to be fine and
recognize the camera, set up the Endpoints and pipes and report the dc2xx
driver to have claimed the interface.  However, when user land accesses the
device the following message appears.

kernel: ohci_bulk_msg_completed 0, c1eae000, 68, c2235dd0
kernel: ohci_bulk_msg_completed 9, c1eae000, 0, c2235df0
kernel: ohci_bulk_msg done, status 9 (bytes_transferred = 0).

The second msg is the read request and the status 9 is...  What?  I thought it
was data underflow but that error number is -9 not 9?

I am not sure what is happening but I am thinking the camera is not getting the
68 bytes as the write msg claims.  Or quite possibly I have an endianess issue
and when the camera gets the data it does not understand?  I know the PCI is LE
and therefore USB is as well.  But is the data passed as LE or BE or whatever
the processor sends?

Thanks in advance
Ira Weiny
iweiny@acm.org


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Re: USB Bulk transfers

[harlan]

On Nov 29, 1999, Dan Bethe <dan_bethe@yahoo.com> wrote:
>	Hi there.  Can you guys suggest a USB card for PCI
>bus, which is supported by MacOS and LinuxPPC?

I'm using an ADS PCI USB card in a PM7600 under MacOS.  The card has an 
OPTI USB chip.  I had to get the USB Card Support from:
  http://www.apple.com/   which took me to 
  http://asu.info.apple.com/swupdates.nsf/artnum/n11543?OpenDocument

You might also want USB Mass Storage Support from:
  http://asu.info.apple.com/swupdates.nsf/artnum/n11418?OpenDocument

Sorry, I haven't tried Linux (since I don't have it set up on that box).

...Harlan

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