Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752877AbZDGJq6 (ORCPT ); Tue, 7 Apr 2009 05:46:58 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751721AbZDGJqr (ORCPT ); Tue, 7 Apr 2009 05:46:47 -0400 Received: from lnx503.hrz.tu-darmstadt.de ([130.83.156.232]:37185 "EHLO lnx503.hrz.tu-darmstadt.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751528AbZDGJqq (ORCPT ); Tue, 7 Apr 2009 05:46:46 -0400 From: Uwe Bonnes MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <18907.8396.397764.21716@elektron.ikp.physik.tu-darmstadt.de> Date: Tue, 7 Apr 2009 11:45:48 +0200 To: Luotao Fu Cc: Uwe Bonnes , gregkh@suse.de, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] USB: serial: add FTDI FT4232H ID In-Reply-To: <20090407090353.GA12669@pengutronix.de> References: <1239090573-11527-1-git-send-email-l.fu@pengutronix.de> <18907.3900.117808.251116@elektron.ikp.physik.tu-darmstadt.de> <20090407090353.GA12669@pengutronix.de> X-Mailer: VM 7.19 under Emacs 21.3.1 X-PMX-TU: seen v0.62 by 5.5.3.366731, Antispam-Engine: 2.7.0.366912, Antispam-Data: 2009.4.7.93123 X-PMX-SPAMCHECK: outgoing mail Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1710 Lines: 34 >>>>> "Luotao" == Luotao Fu writes: Luotao> On Tue, Apr 07, 2009 at 10:30:52AM +0200, Uwe Bonnes wrote: >> >>>>> "Luotao" == Luotao Fu writes: >> Luotao> add the ID of FT4232H Hi-Speed quad channel serial converter. >> This probably isn't enough to make the devices work. >> >> The FT2232H and FT4432H are High Speed devices with defaul buffer >> sizes of 512 bytes. A recieve buffer contains two status bytes and >> then up to 510 bytes of data against 62 bytes on the old devices. Luotao> Shame on me. I did only check whether the device with its four Luotao> channels are registered. Since the chip is built-in on our board Luotao> and I still need some additional libraries to check the devices Luotao> connected to it. I haven't done any function tests still. Will Luotao> keep an eye on this. Sounds that it could be a little hairy Luotao> then. Afais the PID 6001 is e.g. shared by common/high speed Luotao> devices. I didn't grab deeper in the ftdi code, probably it'll Luotao> be some way to work around this. For libusb access, some work for the H-Type chips has already been don in libftdi (www.intra2net.com/en/developer/libftdi/) -- Uwe Bonnes bon@elektron.ikp.physik.tu-darmstadt.de Institut fuer Kernphysik Schlossgartenstrasse 9 64289 Darmstadt --------- Tel. 06151 162516 -------- Fax. 06151 164321 ---------- -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/