Hi,
I'm trying to establish a connection between a Windows XP host and a Linux
(PXA-270) client over usb using the gadget_serial driver.
I started with the pxa27x_udc driver of Rodolfo Giometti
(http://wiki.enneenne.com/index.php/PXA27x_UDC), configured and compiled the
neccessary kernel modules
Hy Dave, Gregg
Thanks for your answers.
To Dave:
> I've heard some folk report that the MS-Windows support for CDC is a
> bit flakey. Maybe that's part of their general strategy of
> undermining standards-based interoperability...
I googled for some details about the used usbser.sys driver but fo
Hy,
> Were you getting such messages from the kernel? "dmesg"
> would show them if you were.
Sorry, i forgot to mention that i included some "extended" printk's by myself.
> But again: if you're not already getting those warnings,
> don't bother looking since that's not the problem.
I get no me
Hy,
> The following thread is quite good. The author is quite good
> at USB and he thinks that usbser.sys is weird.
> http://www.cygnal.org/ubb/Forum9/HTML/000945.html
Thanks for your hint, i'll check it.
> Still I will think "unable to open COM Port" error may not be
> due to the device at all.
Hy
After further tests with the usb gadget serial on the pxa27x (see my previous
postings "USB gadget serial on PXA-270") i think i'm able to address the
problem more precisly.
It seems that the class request SET_LINE_CODING is handled by the gadget driver
_before_ its data OUT stage. That lead
