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List:       gphoto-kodak
Subject:    [gphoto-kodak] Re: [linux-usb] USB bulk transfers (dc2xx driver)
From:       iweiny () pacbell ! net iweiny () pacbell ! net
Date:       1999-12-27 3:46:04
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I sent mail to this list and others on the LinuxPPC lists which reported my
success with this issue.  I made only minor changed to your driver.

113,114c111,112
<       signed char                     inEP;           /* read endpoint */
<       signed char                     outEP;          /* write endpoint */
---
>       char                    inEP;           /* read endpoint */
>       char                    outEP;          /* write endpoint */

190,196c167
<               printk ("camera.r (%ld) - 0x%x %ld\n", len, result, count);
< #endif
<               /*if (!result) {*/
<               if ( (!result) || (result == USB_ST_EOF) ) {
< #ifdef CAMERA_DEBUG
<    printk (KERN_DEBUG "IKW: copying buffer to user space, %ld bytes\n",
<            count);
---
>               printk ("camera.r (%d) - 0x%x %ld\n", len, result, count);
197a169
>               if (!result) {

I defined USB_ST_EOF to be 9.  This is what my card returns when there is no
more data to be transfered.  I also had to change my OHCI driver.  I have not
keep up with the error code changes but as soon as I get some time I want to
get a new USB stack, with URB's and everything and try it on my Mac.

Thanks for the reply.  I really appreciate everyones help on this issue.
Ira Weiny
iweiny@acm.org

--- To quote David Brownell: ---
> 
> Have you tried this with the latest kernels -- 2.3.34 included
> some major changes, including to the OHCI driver.
> 
> It was my belief from what you wrote before that the problems
> you saw were related to flakey error handling in earlier versions
> of the OHCI ... if you still have these problems, I'd like to know
> so that I make sure to look for dc2xx issues!
> 
> - Dave
> 
> 
> 
> iweiny@pacbell.net wrote:
> > 
> > Hello,
> > 
> > I am new to this list but I don't know where else to find help on this subject.
> > Others on intel linux have been able to get USB working for the DC kodak
> > cameras.  I however, have not been able to get it to work with the PowerPC.  Is
> > there any issue in endianess that anyone knows about.
> > 
> > I am running OHCI, 2.3.29 USB stack, with a 2.2.12 kernel.
> > 
> > The following is a mail I sent to the linuxPPC dev list maybe it will help
> > explain what I am running.
> > 
> > Thank you
> > Ira Weiny
> > iweiny@acm.org
> > 

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