QNX 6.4.x CCID USB driver

Evgeniy52 · August 18, 2009, 10:47am

Hi all!

Please, give me a hint.

I have to set up usb-connection with CCID device.

Does QNX support it?
Are there any examples or source code? DDK?

Thank You!

Evgeniy52 · August 20, 2009, 4:47am

So, no one knows?

Tim · August 20, 2009, 1:03pm

Evgeniy52,

There is definitely sample source code for doing a USB driver to communicate with a USB device.

But there is nothing specific for CCID devices mostly because they likely all use proprietary information for USB communication so you need to know exactly what the protocol is for your device.

This link claims to have generic code to deal with them so you might grab this code and port it to QNX

pcsclite.alioth.debian.org/ccid.html

Tim

Evgeniy52 · August 21, 2009, 9:44am

Thank You, Tim!

I’ve seen this material.

I use my own, non-standart, protocol to communicate with a CCID class USB device. It seems to be like just a transfer of data buffer (bulk).

Evgeniy52 · August 21, 2009, 11:50am

I’d like to use USB channel in POSIX-style (open(), read(), write()).
Is it possible?

maschoen · August 21, 2009, 3:54pm

You could create an open/read/write interface to a device on a USB for which it makes sense.

Evgeniy52 · August 24, 2009, 8:25am

maschoen,

how could I do it?

Do you mean a coding of a resource manager?

maschoen · August 24, 2009, 10:19pm

Yes that is what I mean. My point was that it doesn’t make sense to open/read/write to just the USB itself. I suppose that you could create a generic open/read/write/ioctl interface to allow access to any device hooked up to the USB, moving the interface back a layer, but I also think it would be fair to say that it just isn’t done.