linux-kernel - Re: software unplug and plug USB

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Date:	Mon, 01 Oct 2007 10:18:12 +0200
From:	Miguel <mc354@....es>
To:	Tomasz Chmielewski <mangoo@...g.org>
Cc:	LKML <linux-kernel@...r.kernel.org>
Subject: Re: software unplug and plug USB

I also have a mobile phone connected, a gps and a keyboard, i do the
following:


ecar@...r:~$ lsmod | grep usb
usbserial              29928  1 pl2303
usbtouchscreen          8708  0 
usbcore               130304  7
libusual,pl2303,usbserial,usbtouchscreen,ehci_hcd,uhci_hcd
ecar@...r:~$ rmmod pl2303
ERROR: Removing 'pl2303': Operation not permitted
ecar@...r:~$ sudo rmmod pl2303
ecar@...r:~$ sudo rmmod usbserial
ecar@...r:~$ modprobe usbserial
FATAL: Error inserting usbserial
(/lib/modules/2.6.17-11-386/kernel/drivers/usb/serial/usbserial.ko):
Operation not permitted
(reverse-i-search)`mod': cd backup_modules/
(reverse-i-search)`modpro': sudo modprobe  ehci_hcd
ecar@...r:~$ sudo modprobe usbserial vendor=0x12d1 product=0x1003
ecar@...r:~$ lsmod | grep usb
usbserial              29928  0 
usbtouchscreen          8708  0 
usbcore               130304  6
usbserial,libusual,usbtouchscreen,ehci_hcd,uhci_hcd


but only when I unplug and plug manually, the modem starts up ...
Because of that i wanted to unplug/plug via scripting (software way)

On Mon, 2007-10-01 at 09:39 +0200, Tomasz Chmielewski wrote:
> Miguel schrieb:
> > actually, I have a USB keyboard, could that be the problem? why?
> 
> Because when you remove USB modules, USB devices, including USB 
> keyboards, won't work...
> 
> 
> > removing and adding modules doesn't solve my problem... The USB has
> > several functions: modem and usb mass storage and only the storage one
> > is recognized 
> > :(
> 
> What modules exactly do you unload/load again, in what order, using 
> which commands?
> 
> 

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