( 不过到现在还没连上网，USB Network Adapter 配成功 )

1. get the 2.5 version Linux source code.
2. replace module.h from 2.5 version.
3. replace the pegasus.c and pegasus.h from 2.5 version.
4. compile the pegasus.o
5. copy the pegasus.o to /lib/modules/x.x.x-x/kernel/drivers/usb .
6. dmesg:
...
pegasus.c: v0.4.21(2001/08/27): Pegasus/Pegasus II USB Ethe....
pegasus.c: intr interval wll be changed from 1ms to 128ms
pegasus.c: eth0 Linksys USB USB10TX
...
7. set up the IP address, ping it is ok.