I received a Wacom serial graphical tablet and a Keyspan usb to serial
adaptor. Now, I must develop a driver for the tablet.
I tried to search for a usb interface of the keyspan adaptor and I
found one with two alternate settings. There are a many bulk and
isochronous pipes and one interrupt pipe. I tried to read on bulk in
pipes but I've got an error saying that there is no async port.
Do you think tablet use the interupt pipe or a bulk pipe?
I downloaded keyspan driver and intalled it but I don't understand what
is the aim of this driver... What does the driver do? Must I pass
through it? What can I do with this driver? Do I need this driver to
develop the Wacom driver?
Must I speak with USB interface directly or must I speak with Keyspan
driver and make a serial driver?
Thanks a lot, I am a little bit lost...
Cedric Vuillet
Computer engineering
3D, AI, image, video, and network development
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