How to do: PWM in GPB1

Hello guys!

On this week I needed to use the PWM driver, but using the GPIO B1. I saw
this question in forum and in another site. So, I made a copy from the
original char driver and cofigured to GPB1. I hope help who needs :)
The original (GPB0) drive is located at
linux-xxxx/drivers/char/mini2440_pwm.c

Thanks a lot. It really helpfull