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From: Greg KH <greg@kroah.com>
To: e9hack <e9hack@googlemail.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Trouble with USB serial driver (ftdi_sio.c) on 2.6.31
Date: Mon, 14 Sep 2009 09:43:33 -0700	[thread overview]
Message-ID: <20090914164333.GB25381@kroah.com> (raw)
In-Reply-To: <4AAB8F3F.40403@googlemail.com>

On Sat, Sep 12, 2009 at 02:08:31PM +0200, e9hack wrote:
> Hi,
> 
> I've some trouble with the USB serial driver (ftdi_sio.c for a FT232RL from FTDI). If the 
> port is opened for the first time, the driver works perfectly. If the port is closed and 
> open again, it isn't possible to read any data from port. Writing data to the port works. 
> The FT232RL must be reconnect to get it working again. A reboot without reconnect doesn't 
> solve this problem. If I look at the debug output, I don't see read requests from 
> ftdi_sio.c. If reading is possible, I see this read messages:

{sigh}  Yes, this driver is a bit messed up in .31, sorry.  We are
working through it and hope to have a fix in one of the upcoming
.31-stable releases.

thanks,

greg k-h

  reply	other threads:[~2009-09-14 16:45 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-09-12 12:08 Trouble with USB serial driver (ftdi_sio.c) on 2.6.31 e9hack
2009-09-14 16:43 ` Greg KH [this message]
2009-09-14 22:28   ` Johan Hovold

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