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From: Wu Fengguang <fengguang.wu@intel.com>
To: unlisted-recipients:; (no To-header on input)
Cc: "linux-usb@vger.kernel.org" <linux-usb@vger.kernel.org>,
	LKML <linux-kernel@vger.kernel.org>
Subject: Re: cannot reliably detect USB device
Date: Thu, 25 Dec 2008 18:47:53 +0800	[thread overview]
Message-ID: <20081225104753.GB15733@localhost> (raw)
In-Reply-To: <20081223043714.GH1928@kroah.com>

On Tue, Dec 23, 2008 at 06:37:14AM +0200, Greg KH wrote:
> On Mon, Dec 22, 2008 at 04:42:49PM +0800, Wu Fengguang wrote:
> > Hi Greg,
> > 
> > I have a pl2303 USB-RS232 converter that cannot be reliably detected.
> 
> Faulty hardware?  Flaky cables?  Bad connections?  If this is
> reproducable for the same device on multiple machines, I'd just go buy a
> new device :)

I decided to give it a last try before planning a replacement - then I
find that /dev/ttyUSB0 could be created if I enlarge the retry times.

It could take 10 seconds to get a valid response. It must go crazy.

Thanks,
Fengguang


  reply	other threads:[~2008-12-25 10:48 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20081222084249.GA5845@localhost>
2008-12-23  4:37 ` cannot reliably detect USB device Greg KH
2008-12-25 10:47   ` Wu Fengguang [this message]
2009-01-01 17:44     ` Andreas Mohr
2009-01-03 22:07       ` Kay Sievers
2009-01-05  9:03         ` Wu Fengguang

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