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Re: Potential problem with reading data from usb devices with ugen(4)



Brian Buhrow <buhrow%nfbcal.org@localhost> writes:

> 	To answer your question about whether there is a standard for
> generating these packets, it seems there is not.  Linux expects you to use
> an ioctl() to generate the packet while FreeBSD expects you to send a write
> request with 0 bytes, as we do with the ugen(4) changes I'm making.

I meant: in the USB specification, is it legitimate to do zero-length
transfer?

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