December 24, 2001 USTIR 4

### NAME

ustir - SigmaTel STIr4200-based USB-IrDA bridge support

### SYNOPSIS

ustir* at uhub? irframe* at ustir?

### DESCRIPTION

The ustir driver provides support for USB-IrDA bridges based on the SigmaTel STIr4200. The driver is known to work with the following adapters:

  Mars II 740 USB IrDA Adapter

Access to the IrDA device is through the irframe(4) driver.

### SEE ALSO

irframe(4), uirda(4), usb(4)

### HISTORY

The ustir driver appeared in NetBSD1.6.

### AUTHORS

The ustir driver was written by David Sainty <David.Sainty@dtsp.co.nz>
.

### BUGS

The STIr4200 cannot notify the driver when it has received data, instead it has to be continuously polled. This driver polls (when idle) at a fairly low rate of 10 times per second, which means that system performance is not overly affected by rapid polling, but latency is fairly high.