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From: Gene Heskett <gene.heskett@gmail.com>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: David Newall <davidn@davidnewall.com>, Greg KH <greg@kroah.com>,
	linux-usb@vger.kernel.org,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: Handshaking on USB serial devices
Date: Thu, 14 Feb 2008 12:55:21 -0500	[thread overview]
Message-ID: <200802141255.22048.gene.heskett@gmail.com> (raw)
In-Reply-To: <20080214163143.0915b44c@core>

On Thursday 14 February 2008, Alan Cox wrote:
>O> believe at several second intervals.  I can cut those messages to about
>
>> weekly by using an FDTI adaptor in its place, or I can stop them entirely
>> if
>
>Sorry don't see the connection between the two stories ?
>
>Alan

The connection is that windows people don't see those errors, linux folks do. 
I believe, but don't know how to use the tools to verify it, that the first 
byte of a packet is being thrown away about .1% of the time for the pl2303, 
but I'm not sure if the FTDI driver still suffers from a similar rash.  I 
have only one such FTDI adapter in the system atm, and its in series with 
manual heyu commands only, so it doesn't get regularly exercised.  I figure 
it will do the least damage there.  The pl2303's are all hanging on a peg 
waiting for emergency use only, they were just too much trouble when they 
miss-fire and the system issues -wall warnings several times per hour.

-- 
Cheers, Gene
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
The revolution will not be televised.

  reply	other threads:[~2008-02-14 18:56 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-02-13 14:45 David Newall
2008-02-14  5:02 ` Greg KH
2008-02-14  9:25   ` David Newall
2008-02-14 12:10     ` Alan Cox
2008-02-14 16:16       ` Gene Heskett
2008-02-14 16:31         ` Alan Cox
2008-02-14 17:55           ` Gene Heskett [this message]
2008-02-14 19:37             ` Alan Cox
2008-02-14 20:04               ` Gene Heskett
2008-02-14 20:52                 ` Greg KH
2008-02-14 21:32                   ` Gene Heskett
2008-02-15  5:08               ` David Newall
2008-02-14 22:39         ` Krzysztof Halasa
2008-02-14 23:09           ` Gene Heskett
2008-02-14 18:04       ` David Newall
2008-02-14 18:53         ` David Brownell
2008-02-14 19:36         ` Alan Cox
2008-02-21 15:22           ` David Newall
2008-02-21 15:15             ` Alan Cox
2008-02-21 19:35               ` David Newall
2008-02-21 20:58                 ` Greg KH
2008-02-14 20:47     ` Greg KH
2008-02-15  5:19       ` David Newall
2008-02-14 11:55   ` Alan Cox
     [not found] <9Wr5Z-7cw-1@gated-at.bofh.it>
     [not found] ` <9WSJ4-222-21@gated-at.bofh.it>
     [not found]   ` <9WTlN-2T0-7@gated-at.bofh.it>
     [not found]     ` <9WTYn-3Zb-29@gated-at.bofh.it>
2008-02-15 12:00       ` Bodo Eggert

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