Dear Fumatoshi, I'm having trouble getting hotplug to work with my HP 8230e CD Writer. It's a USB cdwriter, and works with the usb-storage module. It works fine if I modprobe usb-storage in by hand. But hotplug doesn't recognise it, saying: /etc/hotplug/usb.agent: ... no modules for USB product 3f0/207/1 The entry for the device in /lib/modules/2.4.17/modules.usbmap is present, and looks like usb-storage 0x000f 0x03f0 0x0207 0x0001 0x0001 0x00 0x00 0x00 0x00 0x00 0x00 0x00000000 Watching the hotplug process carefully as it runs /etc/hotplug/usb.agent when I plug the device in, I notice that it fails because bcdDevice_lo and bcdDevice_hi are both set to 1, but the usb device (usb_bcdDevice) must follow bcdDevice_lo <= bcdDevice < bcdDevice_hi. That is, the module fails to load because bcdDevice is not strictly less than bcdDevice_hi (all values are equal to 1). What does this mean? What do I need to do to get it to run? I notice that your FinePix40i example in README.Debian: usb-storage 0 0x04cb 0x0100 0x0000 0x0000 ... also has bcdDevice_lo = bcdDevice_hi = 0, and therefore ought to fail also for the same reason my cdwriter fails. Why does your camera succeed, while my cdwriter fails? Thanks for any help you can provide. Sincerely, Drew Parsons -- PGP public key available at http://people.debian.org/~dparsons/drewskey.txt Fingerprint: A110 EAE1 D7D2 8076 5FE0 EC0A B6CE 7041 6412 4E4A