The commands that a PS/2 Keyboard accepts are: Don't forget to wait between the command, the data and the response from keyboard. The keyboard typically responds to a command by sending either an "ACK" (to acknowledge the command) or a "Resend" (to say something was wrong with the previous command) back. Some commands have data byte/s which must be sent after the command byte. translated) by the PS/2 controller, depending on the controller's settings.Ī PS/2 Keyboard accepts many types of commands. Keep in mind that these scan codes (from the tables below) may be altered (i.e. The PS/2 Keyboard accepts commands and sends responses to those commands, and also sends scan codes indicating when a key was pressed or released. Ideally, each different type of PS/2 controller driver should provide some sort of standard/simple "send byte/receive byte" interface, and the PS/2 Keyboard driver would use this interface without caring about lower level details (like what type of PS/2 controller the device is plugged into). The PS/2 Keyboard is a device that talks to a PS/2 controller using serial communication.
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