From owner-freebsd-arm@FreeBSD.ORG Wed Apr 16 02:43:29 2014 Return-Path: Delivered-To: freebsd-arm@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 0B9BA63B for ; Wed, 16 Apr 2014 02:43:29 +0000 (UTC) Received: from spoon.beta.com (spoon.beta.com [199.165.180.2]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id B25C41D27 for ; Wed, 16 Apr 2014 02:43:28 +0000 (UTC) Received: from [199.165.180.42] (dhcp12.beta.com [199.165.180.42]) by spoon.beta.com (8.14.5/8.14.5) with ESMTP id s3G2MF6l014474 for ; Tue, 15 Apr 2014 22:22:15 -0400 (EDT) (envelope-from mcgovern@beta.com) Subject: USB hubs on beaglebone black? From: "Brian J. McGovern" To: freebsd-arm@freebsd.org Content-Type: text/plain; charset="us-ascii" Organization: B.E.T.A. Date: Tue, 15 Apr 2014 22:22:10 -0400 Message-ID: <1397614930.1484.4.camel@fbsd-laptop> Mime-Version: 1.0 X-Mailer: Evolution 2.32.1 FreeBSD GNOME Team Port Content-Transfer-Encoding: 7bit X-Spam-Status: No, score=-0.7 required=5.0 tests=HELO_MISC_IP, RP_MATCHES_RCVD autolearn=unavailable version=3.3.2 X-Spam-Checker-Version: SpamAssassin 3.3.2 (2011-06-06) on spoon.beta.com X-BeenThere: freebsd-arm@freebsd.org X-Mailman-Version: 2.1.17 Precedence: list Reply-To: mcgovern@beta.com List-Id: "Porting FreeBSD to ARM processors." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 16 Apr 2014 02:43:29 -0000 All, I'm having an issue with my BBBs and I'm curious if this is a known issue. Googling on the keywords I can think of hasn't turned up much useful. When using webcamd, I can get a camera working fine. However, when I put a powered USB 2.0 hub between the BBB and the camera, I not only get no picture, but things like the vendor and device ID change... I'm assuming there is some corruption going on here, but I only have a small handful of identical USB hubs to play with, so I'm trying to determine whether going shopping is "worth it", or whether there is a problem with the USB stack. -B