From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dave Platt Subject: Re: Issue with RS232 <-> USB adaptor (FC15) Date: Mon, 13 Jun 2011 14:07:14 -0700 Message-ID: <4DF67C02.4060200@radagast.org> References: <4DF663E7.7040100@f8arr.org> <4DF66BF8.6090003@shom.fr> <4DF672E6.7050403@f8arr.org> <4DF678B0.1080600@shom.fr> Mime-Version: 1.0 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: In-Reply-To: <4DF678B0.1080600@shom.fr> Sender: linux-hams-owner@vger.kernel.org List-ID: Content-Type: text/plain; charset="iso-8859-1" To: linux-hams On 06/13/2011 01:53 PM, Bruno Tr=E9guier wrote: > Le 13/06/2011 =E0 22:28, f8arr a =E9crit : >> Hello, >> >> I'm not sure because I found the problem to resolve my issue : >> >> stty --file=3D/dev/ttyUSB0 clocal >> >> I remove all flow control on the serial. I don't think that "clocal" removes flow control (on RTS/CTS) - that's controlled by a separate option. What "clocal" does, is "disable modem control signals". Specifically, for a port marked "-clocal" (not local), an open() call will block until the device on the port asserts the CD (carrier detect) line, and if the CD line is deasserted the port will "hang up". This is useful for serial ports connected to dial-up modems, but not particularly desirable for serial ports being used to control local devices such as transceiver. I can't recall whether a -clocal port automagically asserts DTR even when it isn't open... I don't think so but I could be wrong. -- To unsubscribe from this list: send the line "unsubscribe linux-hams" i= n the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html