From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <017173b1d1992d557e5412e6137fcbe1@hamnavoe.com> To: 9fans@9fans.net From: Richard Miller <9fans@hamnavoe.com> Date: Thu, 19 Feb 2015 12:14:19 +0000 In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Subject: Re: [9fans] r-pi usbotg error Topicbox-Message-UUID: 45568fca-ead9-11e9-9d60-3106f5b1d025 > oh, and remember that a *powered* hub is pretty much essential. Just for the record, I use a classic IBM clicky Model M with a ps2/usb adapter, and a very cheap generic chinese usb keyboard, both problem free without any external hub. Patch /n/sources/patch/maybe/usb-short-desc makes a lot more keyboards work (especially some with hubs). While working on the pi2, I have discovered one glitch which also seems to be the case on the B+ but not the B or A: after rebooting with the "reboot" command (as opposed to resetting the power or using ^t^tr) the keyboard won't respond without being unplugged and replugged. Perhaps the built-in 4-port hub on these pi models needs some sort of reset which the 2-port hub doesn't.