How to auto-load kernel module when peripheral

[Woody Wu]

Hi,

I want my usb-serial converter can be automatically ready to use after
it plugged into an USB port.  Currently I have to manually do
'modprobe ftdi_sio' before use it, otherwise, no module will be loaded
and there is no a /dev/ttyUSB0 appearing.

I am using mdev instead of udev in this embedded system, and full
pathname of mdev had already put in /proc/sys/kernel/hotplug file.  I
also already added a line into my mdev.conf:
  ttyUSB*         root:tty 660

To make it clear, the problem is when I inserted the convert, I did
not see /dev/ttyUSB0 was created and 'lsmod' also not list the
'ftdi_sio' module.  If I check the kernel message at the time of
inserting the device, I can see:

[   43.425000] usb 1-1: new full speed USB device number 2 using s3c2416-ohci
[   43.585000] usb 1-1: New USB device found, idVendor=0403, idProduct=6001
[   43.585000] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[   43.585000] usb 1-1: Product: FT232R USB UART
[   43.585000] usb 1-1: Manufacturer: FTDI
[   43.585000] usb 1-1: SerialNumber: A900aMbV

How do I do?  Thanks in advance!

-- 
Life is the only flaw in an otherwise perfect nonexistence
    -- Schopenhauer

woody
public key at http://subkeys.pgp.net:11371 (narkewoody at gmail.com)