What is the IrDA protocol?
The IrDA (Infrared Data Association) is an industry body developing standards for infrared data transfer. Quoting from their corporate backgrounder … IrDA was established in 1993 to set and support hardware and software standards which create infrared communications links. The Association’s charter is to create an interoperable, low-cost, low-power, half-duplex, serial data interconnection standard that supports a walk-up, point-to-point user model that is adaptable to a wide range of applications and devices. IrDA standards support a broad range of computing, communications, and consumer devices. The IrDA standards are available via the web. In summary, the IrDA has released two versions of the standard: 1.0 and 1.1. Version 1.1 specifies higher speed operations than 1.0, but is backward compatible. The IrDA protocol family consists of several components: IrDA-SIR (serial infrared), IrDA-LMP (link management protocol), IrDA-LAP (link access protocol).