Usb Recover Accross Suspend Resume ??

[dansawyer]

All,

usb suspend resume appears to be hanging up - again. The only way to re-ling accross the usb is after a re-boot. It comes up well.

I tried the sa1100 scripts that used to work for 3.5.1 but  to  no avail. Is there a fix or patch for this??

thanks,
Dan

[grog]

mmm, actually I was just trying to figure this our myself. So that's two!

[dansawyer]

Umm. Well the origenal post was a failior of the 'host' machine to restore usb after a suspend resume cycle. This was new; frequently it is the Z that will not pick up the usb interface. I will experiment and post. That said, is there anyway to 'test' the usb? When it is dead it is dead on both sides.

Dan

[grog]

Just to qualify my own problem, my winxp pc comes up with the error 'USB device not recognized' when I plug my Z (back) in until I reboot the *Z* (not the pc), then it works fine until the next time I unplug then replug the Z back in. HTH

[lardman]

As a temporary work-around...

If you rmmod then insmod the usb/net_fd related modules it should fix it.

I was told on IRC that you should be able to modprobe usbd-control (not sure about the name, but something like that, and just the one module), rather than having to remove/add each module by hand.


Si

[Hrw]

modprobe usbdmonitor?

[lardman]

That sounds like the one :-), I've not tried it (yet) mind you as I can just run my start_net.sh script.

Si

[Pyrates]

Hey lardman, would you mind providing that start_net.sh script?

Cheers
Philipp

[lardman]

Note the differences depending on your processor type (SA or PXA):

https://www.oesf.org/forums/inde...rt_net\.sh

Modified to just reload the net module, rather than looking at the storage stuff.

For SA:

#!/bin/sh
/sbin/rmmod sa1100_bi
/sbin/rmmod net_fd
/sbin/rmmod usbdcore
/sbin/insmod /lib/modules/2.4.18-rmk7-pxa3-embedix/kernel/drivers/usb/device/usbdcore.o
/sbin/insmod /lib/modules/2.4.18-rmk7-pxa3-embedix/kernel/drivers/usb/device/net_fd/net_fd.o
/sbin/insmod /lib/modules/2.4.18-rmk7-pxa3-embedix/kernel/drivers/usb/device/bi/sa1100_bi.o

or for PXA:

#!/bin/sh
/sbin/rmmod pxa_bi
/sbin/rmmod net_fd
/sbin/rmmod usbdcore
/sbin/insmod /lib/modules/2.4.18-rmk7-pxa3-embedix/kernel/drivers/usb/device/usbdcore.o
/sbin/insmod /lib/modules/2.4.18-rmk7-pxa3-embedix/kernel/drivers/usb/device/net_fd/net_fd.o
/sbin/insmod /lib/modules/2.4.18-rmk7-pxa3-embedix/kernel/drivers/usb/device/bi/pxa_bi.o


Si

[Pyrates]

Ahh, so it does just what you mentioned above. Thanks

Cheers
Philipp

[grog]

Thanks lardman. Works for me too!!

[CoreDump]

Did anyone here try to add this script to the APM resume scripts?
If so, did it work as expected?

[Hrw]

I 'love' you guys... those hacks around... but does ANY of you tried to modprobe usbdmonitor and try how does it work with STANDARD OpenZaurus 3.5.x hotplug?

When noone confirm does it work (it works for me) I won't set this as default as usbdmonitor is nasty thing sometimes.

[CoreDump]

I 'love' you guys... those hacks around... but does ANY of you tried to modprobe usbdmonitor and try how does it work with STANDARD OpenZaurus 3.5.x hotplug?

When noone confirm does it work (it works for me) I won't set this as default as usbdmonitor is nasty thing sometimes.

I tried usbmonitor w/ OZ 3.5.1 (IIRC) at one time.
Didn't help w/ the borked USB resume on my Collie.
Will try again tonight.

[grog]

I 'love' you guys... those hacks around... but does ANY of you tried to modprobe usbdmonitor and try how does it work with STANDARD OpenZaurus 3.5.x hotplug?

When noone confirm does it work (it works for me) I won't set this as default as usbdmonitor is nasty thing sometimes.

ok, then what exactly is the command I need to do? I tried

Code: [Select]

# /sbin/modprobe /lib/modules/2.4.18-rmk7-pxa3-embedix/kernel/drivers/usb/device/usbdmonitor.oand all I get is an error that it cannot find the module.