From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?ISO-8859-1?Q?Rapha=EBl_Ass=E9nat?= Subject: [RFC PATCH 0/2] omap-serial: A way to implement modem lines through GPIO Date: Thu, 11 Aug 2011 15:46:53 -0400 Message-ID: <4E4431AD.4070305@8d.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Received: from roc.holo.8d.com ([64.254.227.115]:53455 "EHLO roc.holo.8d.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751168Ab1HKTrA (ORCPT ); Thu, 11 Aug 2011 15:47:00 -0400 Received: from raph.usine.8d.com ([192.168.142.55]) by roc.holo.8d.com with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.69) (envelope-from ) id 1QrbDS-0006sr-25 for linux-omap@vger.kernel.org; Thu, 11 Aug 2011 15:46:58 -0400 Sender: linux-omap-owner@vger.kernel.org List-Id: linux-omap@vger.kernel.org To: linux-omap@vger.kernel.org Hello, At least in the am3505/3517 CPUs, the built-in uarts only expose the=20 RX/TX/RTS/CTS signals. Other signals such as DTR/DSR/RI and DCD, while very useful when controlling a modem, are not available. My design has the above mentioned extra signals wired to GPIOs.=20 Controlling them through sysfs is possible, but not convenient as I needed the standard serial port ioctls to work. There did not seem to be anything in place to do this so I've come up=20 with the following two patches which I am using for now. What do you think? Is there a simpler, more obvious solution? Did anyone attempt doing something to attain a similar goal in the past= ? Best regards, Rapha=EBl Ass=E9nat -- To unsubscribe from this list: send the line "unsubscribe linux-omap" i= n the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html