Developing a char driver for QNX

A character (char) driver is a type of device driver that facilitates communication between user applications and hardware or virtual devices by handling data as a stream of characters serially. Unlike block drivers, which manage data in fixed-size blocks, char drivers operate on a byte-by-byte basis, making them ideal for devices such as serial port and keyboards. For more information about the char driver, visit "Character I/O" in the System Architecture guide.