At the web site http://www.usb.org/developers/tools.html it is
possible to download a tool, "USB Check", which can talk to
various USB devices. For those of us developing USB hardware
this software has the useful feature of being able to ask for
just the descriptor from the device.
This is important because I need a simple, repeatable frame that
I can easily capture with an oscilloscope. I can then perform
various analysis on the waveform to see if we are meeting
signal integrity specs.
But this software has some problems, most of which center around
it only running under W2000. I would just love to replace it
with a Linux based solution. And maybe I could get the usb.org
to include it on their web site as well. Anything that promotes
Linux to that community is a good thing.
What the software needs to do is to allow me to send a descriptor
request to a device at a known place on the USB connectivity tree.
It must be able to do this without access to a driver for that
device, since development hardware doesn't necessarily have a
driver. It should allow this even if there are other USB devices
at other points on the tree. (This is required in order to
trigger an oscilloscope.) And it would be highly desireable to
be able to power cycle the USB device being tested without having
to reload this special driver.
Anybody know of something even remotely like this? I am willing
to hack on existing code, but it is likely to be a tough task.
I have no kernel/module coding experience. And I really don't
know USB protocol. My orientation is hardware (chip design).
I'm not the greatest C programmer on the block. But I'm willing
to give it a try.
FYI: I am running linux 2.4.1 under RH7.0. I tried 2.4.2, but
it locked up on me so I backed it out.
--
Allen Brown
work: Agilent Technologies non-work: http://www.peak.org/~abrown/
[EMAIL PROTECTED] [EMAIL PROTECTED]
_______________________________________________
[EMAIL PROTECTED]
To unsubscribe, use the last form field at:
http://lists.sourceforge.net/lists/listinfo/linux-usb-users
