Hi all , I was trying to write a GPIO driver module for Hawkboard , in order to toggle the LEDs connected to the GPIOs . I am using a OMAP L138 processor , and am trying to do a ioremap of the physical address space to the Kernel's virtual address space . But I guess I am not able to figure out the exact base address of the GPIO bank . I am basically trying to toggle the GPIO Bank 6 . I went through the OMAP L138 reference manual , but am unable to find the base address . Afterwards I plan to use the ioctl function to toggle the LEDs . Attaching herewith the link to the OMAP L138 reference manual . Reference manual : www.ti.com/lit/ug/spruh77a/spruh77a.pdf Could anyone kindly guide me , on the procedure to decipher the Baseaddress of the GPIO Bank 6 from the Reference manual ? Thanks in advance ! Cheers , ~RCB~