On Thu, May 27, 2010 at 01:39:27PM +0200, Balbi Felipe (Nokia-D/Helsinki) wrote:
On Thu, May 27, 2010 at 12:59:33PM +0200, Balbi Felipe (Nokia-D/Helsinki) wrote:
Hi all,
I've been running a test with a device I have, which simply keeps on
turning device on and off in a loop so it gets enumerated several times.
Sometimes, device gets enumerated in full speed. With Beagle USB sniffer
I can see device sent Chirp K but the K-J pairs from host hub didn't
come.
Are there any known issues on Intel chipsets regarding HS handshake ?
Anywhere I could look for possibilities of broken K-J sequencing ??
funny thing is that it only happens with this one particular device, but
if it's a problem on device, how come sniffer doesn't see K-J pairs ?
and if it's a problem on Host, why this device only ? (at least so far).
--
balbi
DefectiveByDesign.org
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