Re: [BUG] USB_PERSIST

Mark Lord <[email protected]>
Newsgroups gmane.linux.usb.devel,gmane.linux.kernel
Message-ID <[email protected]>
Alan Stern wrote:
> On Thu, 29 Nov 2007, Raymano Garibaldi wrote:
> 
>> The feature does work as long as the device remains plugged in and
>> that is what I have said in my previous postings too. What I'm saying
>> that should work and worked under 2.6.21 and is not working currently
>> is the ability to unplug and plug back in the device while the
>> computer is suspended before resuming without losing the mount.
> 
> Okay, guess I misunderstood what you wrote before.
> 
> The patch below for 2.6.23 should do what you want (and more besides).  
> It forces the USB Persist feature to apply to all persist-enabled 
> devices, whether they were unplugged or not.
> 
> There's no chance of this getting accepted into the official kernel in 
> such a simple form, but at least it will allow you to do what you want.
> 
> Alan Stern
> 
> 
> --- 2.6.23/drivers/usb/core/driver.c1	2007-11-29 10:57:36.000000000 -0500
> +++ 2.6.23/drivers/usb/core/driver.c	2007-11-29 11:01:44.000000000 -0500
> @@ -1550,6 +1550,9 @@
>  		if (!(udev->reset_resume && udev->do_remote_wakeup))
>  			return -EPERM;
>  	}
> +
> +	/* Force all system resumes to be reset-resumes */
> +	udev->reset_resume = 1;
>  	return usb_external_resume_device(udev);
>  }
..

Mmm.. how about a nice sysfs attr that the suspend scripts can write
that value to as needed ?

-------------------------------------------------------------------------
SF.Net email is sponsored by: The Future of Linux Business White Paper
from Novell.  From the desktop to the data center, Linux is going
mainstream.  Let it simplify your IT future.
http://altfarm.mediaplex.com/ad/ck/8857-50307-18918-4
_______________________________________________
[email protected]
To unsubscribe, use the last form field at:
https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
lmpx.com only provides a reader for public news (NNTP) servers. It is not affiliated with the servers or forums shown here and is not responsible for the content of articles, which is written by their respective authors.