Can we add a USB keyboard and mouse to the Playstation 2's USB ports to play FPS games? Cause controlling the view with the dualshock controller is very difficult. I tried it once but nothing happened, or does it only work with keyboards and mouse which are meant solely for the PS2?

Not sure about a mouse, but you can buy USB keyboards made by Logitech (or other manufacturers, but I have a logitech) with the PS2, but I believe it needs to be made for the PS2, not the PC.

What about USB keyboards that is plug and play? So how do we control the view if there is no mouse?

SmartJoy FRAG
I do not own this product but it seems like this could help you out.

Thank you, it looks like a good choice for me.

Here's a tip:
USB products designed for the PS2 by logitech that include headsets and keyboards can be used for the PS2 and the Pc
2 for the price of one in case you want a new keyboard or a headset to chat

You can use a Keyboard on a PS2. Search www.logitech.com for games that support a Keyboard.

I thought only the ps2 version of linux supported keyboards and mice?