Date: Thu, 10 Dec 2015 21:59:20 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-usb@FreeBSD.org Subject: [Bug 205232] Stalled USB transfer Message-ID: <bug-205232-17-q6KQE5IfRQ@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-205232-17@https.bugs.freebsd.org/bugzilla/> References: <bug-205232-17@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=205232 Ian Lepore <ian@FreeBSD.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |ian@FreeBSD.org --- Comment #1 from Ian Lepore <ian@FreeBSD.org> --- This was showing signs of failing to attach because it was requesting more power than the port could supply (although the hub on an rpi is configured as self-powered and the ports should allow 500ma attachments). I suggested turning on hub debug to see if it would provide clues about the power, and somehow that made it work. Some kind of timing problem that was "cured" by the extra debug output, maybe? I also tried on my rpi-b attaching a thumb drive that requires 200ma, and it is able to attach without any errors, so there's something more than just the power involved I guess. -- You are receiving this mail because: You are the assignee for the bug.
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