USTIR(4) | Device Drivers Manual | 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 NetBSD 1.6.

# AUTHORS

The `ustir` driver was written by David Sainty <dsainty@NetBSD.org>.

# 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.

December 24, 2001 | NetBSD 11.99