Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751099AbVK0P5h (ORCPT ); Sun, 27 Nov 2005 10:57:37 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751100AbVK0P5h (ORCPT ); Sun, 27 Nov 2005 10:57:37 -0500 Received: from ns.tasking.nl ([195.193.207.2]:18393 "EHLO ns.tasking.nl") by vger.kernel.org with ESMTP id S1751099AbVK0P5g (ORCPT ); Sun, 27 Nov 2005 10:57:36 -0500 To: linux-kernel@vger.kernel.org Mime-Version: 1.0 X-Newsreader: knews 1.0b.1 Reply-To: dick.streefland@xs4all.nl (Dick Streefland) Organization: none X-Face: "`*@3nW;mP[=Z(!`?W;}cn~3M5O_/vMjX&Pe!o7y?xi@;wnA&Tvx&kjv'N\P&&5Xqf{2CaT 9HXfUFg}Y/TT^?G1j26Qr[TZY%v-1A<3?zpTYD5E759Q?lEoR*U1oj[.9\yg_o.~O.$wj:t(B+Q_?D XX57?U,#b,iM$[zX'I(!'VCQM)N)x~knSj>M*@l}y9(tK\rYwdv%~+&*jV"epphm>|q~?ys:g:K#R" 2PuAzy-N9cKM Date: Sun, 27 Nov 2005 15:56:48 -0000 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1474 Lines: 32 I have an AVR microcontroller programmer that connects to the parallel port. It is controlled by a programm called avrdude that uses the ppdev programming interface on /dev/parport* to manipulate the parallel port I/O signals. On my legacy-free laptop, I use an external USB-BAY that provides a serial and parallel port. However, this parallel port is controlled by the usblp driver, and cannot be accesed via ppdev. I checked the usblp driver to see if parport support could be added, but I'm not sure. It isn't clear to me whether the USB protocol provides enough functionality to implement the ppdev ioctl's. Can anyone shed some light on this? BTW, lsusb reports for this device: Bus 001 Device 005: ID 0711:0300 Magic Control Technology Corp. BAY-3U1S1P Parallel Port and the kernel reports: Nov 27 16:48:24 zaphod kernel: usb 1-1.5: new full speed USB device using uhci_hcd and address 9 Nov 27 16:48:25 zaphod kernel: drivers/usb/class/usblp.c: usblp0: USB Bidirectional printer dev 9 if 0 alt 1 proto 2 vid 0x0711 pid 0x0300 -- Dick Streefland //// De Bilt dick.streefland@xs4all.nl (@ @) The Netherlands ------------------------------oOO--(_)--OOo------------------ - 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/