On Tue, 29 Mar 2005, Johannes Berg wrote:

> On Tue, 2005-03-29 at 16:16 -0500, jklaas wrote:
> > I have another question that I don't quite understand.  With the FM Radio
> > the TransferBufferLength in the URB going down is usually either 0x16 or
> > 0xca.  The URB coming back has the TransferBufferLength is 0x06.  I
> > guess I don't quite understand why they're different.
>
> I don't know if you're aware, but I just ordered LDD3 which is also
> available online. The USB chapter was very valuable.
> http://lwn.net/Kernel/LDD3/
> http://www.oreilly.com/catalog/linuxdrive3/errata/

Yes, I was lusting after it earlier this month.

> Now, to your question:
> I don't know what you're saying really. Is that what you are observing
> from some closed-source driver?

Well, it's not a driver as far as I can tell.  At least for the radio
part.  The mouse part runs fine under the normal windows HID driver.
Then there's this radio program that uses this radio.dll.  There's a
bunch of init stuff, about 9 URBs long, then if I don't move the mouse,
but start up the radio, that's when I start seeing interesting packets.

> johannes
>

-- 
                        James Klaas

'Pray, Mr. Babbage, if you put into the machine wrong figures, will the right
answers come out?' I am not able rightly to apprehend the kind of confusion of
ideas that could provoke such a question.


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