From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by befuddled.reisers.ca (Postfix, from userid 65534) id E993E1F01B7; Sun, 4 Jun 2017 02:22:53 -0400 (EDT) Received: from out1-smtp.messagingengine.com (out1-smtp.messagingengine.com [66.111.4.25]) by befuddled.reisers.ca (Postfix) with ESMTPS id A3D651EFD9C for ; Sun, 4 Jun 2017 02:22:51 -0400 (EDT) Received: from compute2.internal (compute2.nyi.internal [10.202.2.42]) by mailout.nyi.internal (Postfix) with ESMTP id A351520B94 for ; Sun, 4 Jun 2017 02:22:44 -0400 (EDT) Received: from frontend2 ([10.202.2.161]) by compute2.internal (MEProxy); Sun, 04 Jun 2017 02:22:44 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fastmail.fm; h= content-type:date:from:in-reply-to:message-id:mime-version :references:subject:to:x-me-sender:x-me-sender:x-sasl-enc :x-sasl-enc; s=fm1; bh=lpbz+Bj+3zoXO+fHRUFzee+yJrRJndB++y2Rqr07j Q8=; b=DDpdr5243n326saJMj7J3SX1j8MFlPR0OY7UNvfvdEIxTExWlLwhPEIKh kCbO6mhfOZjz4WBBa5aTGf1nRXOIChgroWmGpG0F8AWTAWOtt8R4KPxOvclyPScD zTFqebJkmNiMTZNz+MNXFiaMQQyPDnve8Mn3KgjESwO/SA6nkpVx2uZw2zxgZGbb GeCrfzCF8Y4TDFZZRWgmKNvxtCMr6Tq3aDaNtg1Pe1XQvLojkh5t2RDhEhOSBhWz n/3y51R+UeoS4DjogSIndWzLmNdFtCPe9waF+6O7sXPFE9UuaTSsCoEEUmfPrWJb SRIfkTUP6SevB8abKcEcuRNfguCDA== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to:x-me-sender :x-me-sender:x-sasl-enc:x-sasl-enc; s=fm1; bh=lpbz+Bj+3zoXO+fHRU Fzee+yJrRJndB++y2Rqr07jQ8=; b=FWhM+Z6m17/ePqaDLgo+d00HqLKYoDVWjK uoyh0HVr+YIqf1GS+TthpqnGzHDo+kyOGdpRQ6Wqe7tCeiG9lleLf3p4WL0tMut+ LQLf2/6z5rY/FBOF2dFj1NUNU3k9Y1HWYMrQhH3XachcWec3QaM+/kRXhmEUxnx9 SdIa9z5DWU9rTHHE+E9MZ7w+JnaS3x22CGv1SGDjPQ2nKqqWu8nxXtCffW5kxS6a EM0w5EWzXr1jd5u4Dt/05SuCRn3H2DRpf3H06gaI6TiCRbZwJ8ZR23C/MInzXISG rYdX2VhBmfPRbozi0Tm/G6B4iGXSFQXQRjoDCONgBpd2ev+CY1Dw== X-ME-Sender: X-Sasl-enc: 0GR+dxaM8CoB9ywkjz/PcmRiyWVer3452XbXjeTkEtjB 1496557364 Received: from qlf.suddenlink.net (unknown [47.208.139.193]) by mail.messagingengine.com (Postfix) with ESMTPA id 232DC24753 for ; Sun, 4 Jun 2017 02:22:44 -0400 (EDT) Date: Sat, 3 Jun 2017 23:22:41 -0700 From: Tom Fowle To: speakup@linux-speakup.org Subject: Re: supporting more than ttyS* Message-ID: <20170604062241.GD4605@qlf.suddenlink.net> References: <20170602233159.GA13309@gregn.net> <20170602235657.hp5ta2g6jvrsijle@var.youpi.perso.aquilenet.fr> <20170603004451.GA24509@gregn.net> <20170603123241.dvmmhbdq2cwz7nnl@var.youpi.perso.aquilenet.fr> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20170603123241.dvmmhbdq2cwz7nnl@var.youpi.perso.aquilenet.fr> User-Agent: Mutt/1.5.21 (2010-09-15) X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 X-BeenThere: speakup@linux-speakup.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: "Speakup is a screen review system for Linux." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 04 Jun 2017 06:22:54 -0000 Since many parallel ports are not bidirectional, it might be hard or impossible to support indexing on a parallel port. I'm pretty sure the LiteTalk synth, a doubletalk LT with parallel port, does not support indexing on the parallel port for that reason. There is no means of returning data on a "printer" port. Tom Fowle WA6IVG On Sat, Jun 03, 2017 at 02:32:41PM +0200, Samuel Thibault wrote: > Gregory Nowak, on ven. 02 juin 2017 17:44:51 -0700, wrote: > > On Fri, Jun 02, 2017 at 07:56:57PM -0400, Samuel Thibault wrote: > > > Uh. Well, probably, actually. It's a matter of writing the driver, i.e. > > > having a documentation of the protocol and somebody to do the tests, or > > > better, lend the hardware for testing. > > > > We already have the driver, for serial anyway. The blazer uses the bns > > driver. > > Ah, cool :) > > > It sounds from what you said like it wouldn't be straight > > forward to open the parallel port instead of the serial port, and just > > start writing to it. > > Yes, since /dev/lp* provide a tty interface, so the tty codebase should > be able to use them. That actually shows that serdev is not enough for > all our uses, so we'll really want to use the tty interface. > > > I thought actually that using the parallel port > > is more straight forward, since there are no parameters like baudrate, > > stopbits, parity, and handshaking to set. Am I totally off here? > > From a tty perspective, it's just the same :) > But yes, there are a lot less questions with a parallel port. > > Samuel > _______________________________________________ > Speakup mailing list > Speakup@linux-speakup.org > http://linux-speakup.org/cgi-bin/mailman/listinfo/speakup