From mboxrd@z Thu Jan  1 00:00:00 1970
From: erik quanstrom <quanstro@labs.coraid.com>
Date: Tue, 17 Sep 2013 21:39:36 -0400
To: 9fans@9fans.net
Message-ID: <086de4e60aaf75e8a07b04c3f487685b@coraid.com>
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Subject: [9fans] ehci kbd issue
Topicbox-Message-UUID: 80867f5c-ead8-11e9-9d60-3106f5b1d025

i've got a funny little box that was fiddling with this evening, and ehci doesn't
seem to want to play nice with one keyboard.  bios can talk to a compact apple
keyboard, so ehci is working, and ehci is getting interrupts, but i'm getting this
message on the console

from port/usbehci.c:
		iprint("ehci %#p: io %#p qh %#p timed out (no intr?)\n",
			ctlr->capio, io, qh);

on the raspberry, i'm getting
	usb/hub... /boot/usbd: /dev/usb/ep8.0: port 1: resumed (sts 0x0)
	/boot/usbd: /dev/usb/ep8.0: port 2: resumed (sts 0x0)
	/boot/usbd: /dev/usb/ep8.0: port 3: resumed (sts 0x0)
	/boot/usbd: /dev/usb/ep8.0: port 4: resumed (sts 0x0)
	/boot/usbd: /dev/usb/ep8.0: port 1: resumed (sts 0x0)
	[.. repeats 2,3,4,1...]

this seems like an ehci-level misunderstanding, but i haven't really had
the chance to hunt this down.

any ideas?

- erik