Re: [linux-usb-devel] CRC of data packet

2007-04-15 Thread David Brownell
On Sunday 15 April 2007 11:07 am, John Wojnaroski wrote: > Hi, > > I've been plowing through the various specs on USB trying to find an > answer, but my eyes are starting to hurt ;-) > > Perhaps some one knows the answer and a pointer to the reference > > Does USB require a CRC of the data pack

[linux-usb-devel] CRC of data packet

2007-04-15 Thread John Wojnaroski
Hi, I've been plowing through the various specs on USB trying to find an answer, but my eyes are starting to hurt ;-) Perhaps some one knows the answer and a pointer to the reference Does USB require a CRC of the data packet for the four types of msgs sent? If so is that value calculated by t