I need to develop a pl2303 usb driver CLIENT SIDE. Do
you know if something like that is already available?
I've just tried a general usb-char driver client side, but I can't have any kind of control flow.
Why pl2303 -- because it has flow control?
Do you think it's possible to start from gadget/serial device driver?
That's what I'd recommend if you need a device-side (vs host-side) usb serial driver. It's already written (although not much used yet), and it'd better to update that driver than to use the less portable device-side driver stacks. The PXA2xx UDC driver seems pretty solid lately.
Where can I find the gadget patches for 2.4.21? I found just the gadget-2.4.23.
Clone bk://usb-gadget.bkbits.net/gadget-2.4 and use these files from it in your 2.4.21-rmk-pxa patches:
drivers/usb/gadget/*
include/linux/usb_gadget.h
include/linux/usb_ch9.hYou'll also need to modify drivers/Makefile and drivers/usb/Config.in to reference the gadget Makefile and Config.in files, so it all configures/builds.
- Dave
Thanks a lot,
Antonio
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