The reason I need to detach a device from the drive is a long story. I have muptiple wireless phones (modems), using usbserial drive, making ppp calls at the same time in the same PC. The linux PC frequently freezes up with "kernel panic" message. It is definitely related to usbserial because other phones using ACM drive don't cause thie issue.
I tried all Redhat versions without solving the problem. As I found with only one usbserial device, the problem happens rarely, this is why I'd like to be able to detach a ttyUSB device from the usbserial drive dynamically.
Thanks,
Simon
From: Greg KH <[EMAIL PROTECTED]> To: simon wu <[EMAIL PROTECTED]> CC: [EMAIL PROTECTED] Subject: Re: [Linux-usb-users] How to unmount a specific ttyUSB device? Date: Sat, 27 Sep 2003 15:53:23 -0700
On Sat, Sep 27, 2003 at 01:25:57PM +0000, simon wu wrote:
> Greg,
>
> By unloading the driver, the other connected devices do get affected. This
> is exactly what I am trying to avoid.
>
> I guess no other ways?
Again, why do you want to do such a thing?
You can disconnect a specific device from a driver that has bound to it using a usbfs call. See the documentation for that for more details.
Good luck,
greg k-h
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