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From: Greg KH <greg@kroah.com>
To: "Gu, Mingkun" <Mingkun.Gu@GTECH.COM>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Help: undesired 10 seconds delay in creating USB devices
Date: Thu, 23 Oct 2008 09:13:55 -0700	[thread overview]
Message-ID: <20081023161355.GA8171@kroah.com> (raw)
In-Reply-To: <32C88E5279F5DD46B7237443CD61E67901E455BA@cspmail02.gtk.gtech.com>

On Thu, Oct 23, 2008 at 01:11:00PM -0300, Gu, Mingkun wrote:

Please stop sending email in HTML format, the mailing lists reject it.

> [MKGU>] My device driver name is "usbled". Our USB device has
> VendorID=11b4. After I unplugged the USB cable connecting to this device
> and kept the device driver "usbled" remaining loaded, I plugged in the
> USB cable back to the system again. I could see the device information
> retrieved from /proc/bus/usb/devices immediately but the device name
> /dev/usbled0 was seen after near 10 seconds.

That sounds like a udev script issue, not a kernel issue, correct?

> > If you run 'udevadm monitor', does it show a 10 second delay?
> 
> [MKGU>] I don't have the program 'udevadm' on my system.

Do you have the program 'udevmonitor'?  I suggest trying that.

thanks,

greg k-h

  parent reply	other threads:[~2008-10-23 19:16 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <32C88E5279F5DD46B7237443CD61E67901E455B9@cspmail02.gtk.gtech.com>
2008-10-23 15:22 ` Help: undesired 10 seconds delay in creating USB devices Greg KH
     [not found]   ` <32C88E5279F5DD46B7237443CD61E67901E455BA@cspmail02.gtk.gtech.com>
2008-10-23 16:13     ` Greg KH [this message]
2008-10-23 19:22       ` Kay Sievers
     [not found]       ` <32C88E5279F5DD46B7237443CD61E67901E455BB@cspmail02.gtk.gtech.com>
2008-10-23 19:36         ` Greg KH
2008-10-23 19:49           ` Kay Sievers
     [not found]             ` <32C88E5279F5DD46B7237443CD61E67901E455BC@cspmail02.gtk.gtech.com>
2008-10-23 20:30               ` Kay Sievers

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