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Hi there,
and again, another topic about Squeak and its usb capabilities. At the
moment I'm in the very need of the possibility to use bi-directional
usb-communication within squeak.
I'm using usb devices with my own firmware which of course have no known
vendor and product ids. Thus, Linux does not show them under
/dev/ttyUSB*, only if I do a
# modprobe usbserial vendor=0x0694 product=0xff00
before connecting, which I do not consider as user-friendly. Maybe I'm
doing something wrong here, but I could not find much documentation
about the usbserial generic driver for linux and it seems not to have an
option to mount all unknown devices capable of a serial interface
automatically.
Thus, I want to use something like libusb, which could simply enumerate
usb devices and send data to or receive it from them. Basically, there
are three options:
- build a vm plugin using a usb library (like libusb)
- include libusb via FFI
- use an external program capable of sending usb commands and connect it
via OSProcess or sockets
I read some messages about squeak and usb on this mailing list and
google. Also, about a phidgets connection, which would need a usb
connection, too, as far as i can see.
So, what is the current state of these efforts, is it possible to use
any of them? Or do I have to implement one on my own? Which of the
implementation options above would you prefer, in order to achieve my
goals easily? Perhaps any other ideas or solutions?
Thanks in advance,
Martin
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