Re: cannot reliably detect USB device

Wu Fengguang
2008-12-25T10:48:19Z

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