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PAO2 Id: cnw.4,v 1.1.1.1 1997/12/11 14:46:23 itojun Exp
.Dd January 5, 1997 .Dt CNW 4 .Os .Sh NAME .Nm cnw .Nd .Tn Netwave AirSurfer Wireless LAN interface .Sh SYNOPSIS .Cd "cnw* at pcmcia? function ?" .Sh DESCRIPTION The .Nm cnw interface provides access to a theoretical 1 Mb/s wireless ethernet network based on the Netwave AirSurfer Wireless LAN (formerly known as the Xircom Netwave Wireless LAN). Note that the driver does not support more-recent device families like Netwave AirSurfer .Dq Plus , or BayStack 650/660.
p It use 32K of I/O memory mapped to the card along with either 16 I/O ports or 4K of additional I/O memory for access to command registers. The driver currently only supports the use of the additional 4K of I/O memory. You may need to increase memory space available to the PCMCIA controller. See .Xr pcmcia 4 for details.
p In use, the cards appear to achieve up to a 420Kb/s transfer rate, though a transfer rate between 250Kb/s and 350Kb/s is typical. The card operates in the 2.4Ghz frequency range and is subject to interference from microwaves as well as earth.
p .Sh DIAGNOSTICS l -diag t "cnw0: can't map memory" Indicates that the driver was not able to allocate 32Kbytes of PCMCIA bus address space into which to map the device. See .Xr pcmcia 4 and increase memory available to the PCMCIA controller. .El .Sh SEE ALSO .Xr intro 4 , .Xr arp 4 , .Xr inet 4 , .Xr cnwctl 8
Indexes created Sat Oct 25 16:10:12 GMT 2025