From: Alan Cox <alan@linux.intel.com>
To: Darron Black <darron@griffin.net>
Cc: Wolfram Sang <w.sang@pengutronix.de>,
Claudio Scordino <claudio@evidence.eu.com>,
Greg KH <greg@kroah.com>, Alan Cox <alan@lxorguk.ukuu.org.uk>,
Nicolas Ferre <nicolas.ferre@atmel.com>,
linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
Jesper Nilsson <Jesper.Nilsson@axis.com>,
Mikael Starvik <mikael.starvik@axis.com>
Subject: Re: [PATCH] RS485: fix inconsistencies in the meaning of some variables
Date: Mon, 14 Nov 2011 12:07:45 +0000 [thread overview]
Message-ID: <20111114120745.376729c4@bob.linux.org.uk> (raw)
In-Reply-To: <4EC062B7.2090100@griffin.net>
> Perhaps the RTS toggle after transmit delay needs to be large, and
> they'd rather do it in userspace than block in the driver. I also
> recall a protocol that would send a master assertion command and hold
> on to RTS afterwards. I can easily imagine needing to quickly
Appletalk does this for one. Some protocols use it for priming low cpu
power receivers. You fire a header message at the target which fits
into its serial fifo, it then responds and can sit in a tight loop
getting the following frame data.
Alan
WARNING: multiple messages have this Message-ID (diff)
From: alan@linux.intel.com (Alan Cox)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] RS485: fix inconsistencies in the meaning of some variables
Date: Mon, 14 Nov 2011 12:07:45 +0000 [thread overview]
Message-ID: <20111114120745.376729c4@bob.linux.org.uk> (raw)
In-Reply-To: <4EC062B7.2090100@griffin.net>
> Perhaps the RTS toggle after transmit delay needs to be large, and
> they'd rather do it in userspace than block in the driver. I also
> recall a protocol that would send a master assertion command and hold
> on to RTS afterwards. I can easily imagine needing to quickly
Appletalk does this for one. Some protocols use it for priming low cpu
power receivers. You fire a header message at the target which fits
into its serial fifo, it then responds and can sit in a tight loop
getting the following frame data.
Alan
next prev parent reply other threads:[~2011-11-14 11:56 UTC|newest]
Thread overview: 59+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-08-15 14:28 [PATCH] atmel_serial: RS485: receiving enabled when sending data Bernhard Roth
2011-08-15 14:28 ` Bernhard Roth
2011-08-22 21:18 ` Greg KH
2011-08-22 21:18 ` Greg KH
2011-08-23 8:30 ` Claudio Scordino
2011-08-23 8:30 ` Claudio Scordino
2011-08-23 8:30 ` Claudio Scordino
2011-08-23 9:30 ` Russell King - ARM Linux
2011-08-23 9:30 ` Russell King - ARM Linux
2011-08-23 9:30 ` Russell King - ARM Linux
2011-08-23 10:06 ` Claudio Scordino
2011-08-23 10:06 ` Claudio Scordino
2011-08-23 10:14 ` Alan Cox
2011-08-23 10:14 ` Alan Cox
2011-08-23 10:21 ` Russell King - ARM Linux
2011-08-23 10:21 ` Russell King - ARM Linux
2011-08-23 10:21 ` Russell King - ARM Linux
2011-08-23 15:39 ` Greg KH
2011-08-23 15:39 ` Greg KH
2011-08-23 15:39 ` Greg KH
2011-08-24 7:48 ` Claudio Scordino
2011-08-24 7:48 ` Claudio Scordino
2011-11-04 8:19 ` [PATCH] RS485: fix inconsistencies in the meaning of some variables Claudio Scordino
2011-11-04 8:19 ` Claudio Scordino
2011-11-04 10:36 ` Jesper Nilsson
2011-11-04 10:36 ` Jesper Nilsson
2011-11-04 10:36 ` Jesper Nilsson
2011-11-08 9:30 ` Nicolas Ferre
2011-11-08 9:30 ` Nicolas Ferre
2011-11-08 9:59 ` Jean-Christophe PLAGNIOL-VILLARD
2011-11-08 9:59 ` Jean-Christophe PLAGNIOL-VILLARD
2011-11-08 9:59 ` Jean-Christophe PLAGNIOL-VILLARD
2011-11-08 10:48 ` Claudio Scordino
2011-11-08 10:48 ` Claudio Scordino
2011-11-08 13:48 ` Alan Cox
2011-11-08 13:48 ` Alan Cox
2011-11-08 14:24 ` Greg KH
2011-11-08 14:24 ` Greg KH
2011-11-09 14:51 ` Claudio Scordino
2011-11-09 14:51 ` Claudio Scordino
2011-11-13 21:53 ` Wolfram Sang
2011-11-13 21:53 ` Wolfram Sang
2011-11-14 0:37 ` Darron Black
2011-11-14 0:37 ` Darron Black
2011-11-14 0:37 ` Darron Black
2011-11-14 11:11 ` Nicolas Ferre
2011-11-14 11:11 ` Nicolas Ferre
2011-11-14 12:07 ` Alan Cox [this message]
2011-11-14 12:07 ` Alan Cox
2011-11-14 8:22 ` Claudio Scordino
2011-11-14 8:22 ` Claudio Scordino
2011-11-14 12:18 ` Nicolas Ferre
2011-11-14 12:18 ` Nicolas Ferre
2011-11-08 15:02 ` Nicolas Ferre
2011-11-08 15:02 ` Nicolas Ferre
2011-11-08 15:45 ` Claudio Scordino
2011-11-08 15:45 ` Claudio Scordino
2011-11-08 16:34 ` Jesper Nilsson
2011-11-08 16:34 ` Jesper Nilsson
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