From owner-freebsd-usb@FreeBSD.ORG Tue Nov 17 02:08:34 2009 Return-Path: Delivered-To: freebsd-usb@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id D1D00106566B for ; Tue, 17 Nov 2009 02:08:34 +0000 (UTC) (envelope-from daichi@ongs.co.jp) Received: from natial.ongs.co.jp (natial.ongs.co.jp [202.216.246.90]) by mx1.freebsd.org (Postfix) with ESMTP id A2E4C8FC25 for ; Tue, 17 Nov 2009 02:08:34 +0000 (UTC) Received: from parancell.ongs.co.jp (dullmdaler.ongs.co.jp [202.216.246.94]) by natial.ongs.co.jp (Postfix) with ESMTPSA id F045812543B; Tue, 17 Nov 2009 10:50:25 +0900 (JST) Date: Tue, 17 Nov 2009 10:50:25 +0900 From: Daichi GOTO To: freebsd-usb@freebsd.org Message-Id: <20091117105025.55e8d003.daichi@ongs.co.jp> Organization: ONGS Inc. X-Mailer: Sylpheed 2.7.1 (GTK+ 2.16.6; amd64-portbld-freebsd9.0) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Cc: ozawa@ongs.co.jp Subject: some quirk issue around uhid operations X-BeenThere: freebsd-usb@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: FreeBSD support for USB List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 17 Nov 2009 02:08:34 -0000 Hi USB developers :) Our company's developer Ozawa-san has found some quirk issue around uhid device operations. For example, using uhid0 from processA and using uhid1 from processB at the same time, sometimes read(2) operation leads handup. In case useing those not at same time, there is no hangup. In this week he has been doing test and above issue happens all the time. At last he didn't find does which read(2) or write(2) operations have a bug. If you have some ideas or can resolve this issue, please help us! -- Daichi GOTO CEO | ONGS Inc. 81-42-316-7945 | daichi@ongs.co.jp | http://www.ongs.co.jp LinkedIn: http://linkedin.com/in/daichigoto