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Insyte
Asked: 2009-07-17 12:21:27 +0800 CST

Force the unloading of a kernel module when the USB devices is unplugged?

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I'm using a MultiTech GPRS modem on Ubuntu 8.0.4 (2.6.24-24 kernel with the MultiTech patches to the ti_usb_3410_5052 module).

The device works great. However if I disconnect it and then reconnect without removing the module in between, it hangs. Attempting to modprobe -r ti_usb_3410_5052 at this point hangs. And running lsusb hangs.

So. There must be a way to trigger the removal of the module when I disconnect the device. Any hints? Maybe a udev rule?

linux ubuntu usb udev

1 Answers

  1. Best Answer
    • Have you already tried just using rmmod to remove the module?
    • Also, you should probably put the ppp device down before removing the hardware.
    • If you want to create a udev rule that reacts on removing the driver, something like DRIVER="ti_usb_4410_5052", ACTION="remove", PROGRAM="/sbin/rmmod ti_usb_3410_5052.
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