Hi all, This is a question that arose from a older kernel ( 2.6.21 ) but I think it's generic to all kernels. Actually this might not a question on the kernel itself at all. So here it goes, I'm using a USB 3G modem with this kernel. The system loads three modules for it: pl2303, option and usbserial. Problem is, it looks like the order or loading is different ( I'm judging this by the order they appear in lsmod output): Sometimes, lsmod says: pl2303 18628 0 option 9664 0 usbserial 28296 2 pl2303,option And sometimes, it says: option 9664 0 pl2303 18628 0 usbserial 28296 2 option,pl2303 Problem is, if option is before pl2303, the device won't work properly. So my question is: who decides which is loaded first, or, why does lsmod give different order? Thanks a lot!