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From: David Newall <davidn@davidnewall.com>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Gene Heskett <gene.heskett@gmail.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: Fri, 15 Feb 2008 15:38:37 +1030	[thread overview]
Message-ID: <47B51E55.6020203@davidnewall.com> (raw)
In-Reply-To: <20080214193731.3c36acb0@core>

Alan Cox wrote:
>> 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 
>>     
>
> A 20 byte low speed message is too small for flow control to account for
> it.

I agree.  I've observed the first byte of received data disappears on
pl2303 devices, but haven't spent time finding out why.  (It's on my list.)

  parent reply	other threads:[~2008-02-15  5:08 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-02-13 14:45 Handshaking on USB serial devices 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
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 [this message]
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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