Which interface: sysfs, proc, devfs?

[Jonas Diemer]

Hi!

I am writing a driver for an usb microcontroller (ezusb), which will be
used for measuring and controlling. I am confused on which interface to
use though. The driver is for kernel 2.6.x. 
I want to send small (human readable) commends as well as data (e.g.
firmware) to the device. Which filesystem is appropriate?

regards

Jonas

PS: Please CC me in replies, I am not subscribed to the list.
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