On Sat, 14 Nov 2009, Alan Stern wrote:
On Sat, 14 Nov 2009, Theodore Kilgore wrote:
There appear to be two possibilities. One is that the camera really is
sending nonempty data packets, but for some reason uhci-hcd doesn't get
the data. The only way to verify this would be to use a USB bus
analyzer.
How much does one of those things cost? Perhaps I should have one. Perhaps
I could try to argue my boss into helping pay for it, if I am lucky...
Full- and low-speed analyzers are available relatively inexpensively.
The Beagle-USB-12 from www.totalphase.com costs $400. (In fact, I have
one.) The Beagle-USB-480 (high-speed) costs $1200.
Alan Stern
Yikes. Yes, I will have to talk to Mr. Boss about that. I wonder how far
he will go in supporting a Linux hardware programmer whose job says he is
a research mathematician, but who these days would rather do this kind of
thing than work at what I used to do for the previous 30 years.
Theodore Kilgore
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