From owner-freebsd-arm@FreeBSD.ORG Wed Jun 17 06:50:31 2015 Return-Path: Delivered-To: freebsd-arm@hub.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id F37DEE1; Wed, 17 Jun 2015 06:50:30 +0000 (UTC) (envelope-from hps@selasky.org) Received: from mail.turbocat.net (mail.turbocat.net [IPv6:2a01:4f8:d16:4514::2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id B758C9D8; Wed, 17 Jun 2015 06:50:30 +0000 (UTC) (envelope-from hps@selasky.org) Received: from laptop015.home.selasky.org (cm-176.74.213.204.customer.telag.net [176.74.213.204]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.turbocat.net (Postfix) with ESMTPSA id 750D01FE023; Wed, 17 Jun 2015 08:50:26 +0200 (CEST) Message-ID: <558118EA.1000100@selasky.org> Date: Wed, 17 Jun 2015 08:51:22 +0200 From: Hans Petter Selasky User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:31.0) Gecko/20100101 Thunderbird/31.7.0 MIME-Version: 1.0 To: Martin Galvan , freebsd-drivers@freebsd.org, freebsd-arm@freebsd.org Subject: Re: Mentor Graphics USB OTG Controller support References: In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit X-BeenThere: freebsd-arm@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: "Porting FreeBSD to ARM processors." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 17 Jun 2015 06:50:31 -0000 On 06/16/15 21:48, Martin Galvan wrote: > Hi there! I'm looking at the existing support for using the Beaglebone > Black board as a USB host. The board is based on an AM335x SOC, whose > USB module is built around the Mentor musbmhdrc USB OTG controller. I > looked at the corresponding driver (sys/dev/usb/controller/musb_otg.c) > and saw a comment indicating that the current implementation only > supports Device Side Mode, while the commit history (and the code > itself) shows that there's at least a basic Host side support. > > Has anyone tested this driver and knows whether the host side is functional? > Hi, The driver supports both host and device, though there might be some problems supporting multiple devices due to a very limited number of endpoints available. --HPS