From owner-freebsd-usb@FreeBSD.ORG Sat Nov 12 07:42:32 2011 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 5D9D1106566B for ; Sat, 12 Nov 2011 07:42:32 +0000 (UTC) (envelope-from hselasky@c2i.net) Received: from swip.net (mailfe05.c2i.net [212.247.154.130]) by mx1.freebsd.org (Postfix) with ESMTP id DBEB48FC13 for ; Sat, 12 Nov 2011 07:42:31 +0000 (UTC) X-T2-Spam-Status: No, hits=2.0 required=5.0 tests=ALL_TRUSTED, BAYES_95 Received: from [188.126.198.129] (account mc467741@c2i.net HELO laptop002.hselasky.homeunix.org) by mailfe05.swip.net (CommuniGate Pro SMTP 5.2.19) with ESMTPA id 200858623; Sat, 12 Nov 2011 08:42:29 +0100 From: Hans Petter Selasky To: freebsd-usb@freebsd.org Date: Sat, 12 Nov 2011 08:39:41 +0100 User-Agent: KMail/1.13.5 (FreeBSD/8.2-STABLE; KDE/4.4.5; amd64; ; ) References: In-Reply-To: X-Face: *nPdTl_}RuAI6^PVpA02T?$%Xa^>@hE0uyUIoiha$pC:9TVgl.Oq, NwSZ4V"|LR.+tj}g5 %V,x^qOs~mnU3]Gn; cQLv&.N>TrxmSFf+p6(30a/{)KUU!s}w\IhQBj}[g}bj0I3^glmC( :AuzV9:.hESm-x4h240C`9=w MIME-Version: 1.0 Content-Type: Text/Plain; charset="iso-8859-15" Content-Transfer-Encoding: 7bit Message-Id: <201111120839.41108.hselasky@c2i.net> Cc: Subject: Re: [uslcom][patch] Add GPIO support 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: Sat, 12 Nov 2011 07:42:32 -0000 On Friday 11 November 2011 22:06:19 JD Louw wrote: > This patch adds custom IOCTLs to read and write the 4 GPIO pins on the > cp2103 usb-to-serial chip. Time from IOCTL to actual pin change is > pretty slow though. Hi, How slow is it? Have you tried reducing the interval of the intervalled control request and see if there are any changes? Maybe the intervalled control request should be started from a timer/callout instead. --HPS