supports 802.11 DS cards as well as FH cards.
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.\" $NetBSD: awi.4,v 1.5 2000/01/16 12:22:56 abs Exp $
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.\" $NetBSD: awi.4,v 1.6 2000/03/22 11:24:33 onoe Exp $
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.\"
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.\"
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.\" $Id: awi.4,v 1.5 2000/01/16 12:22:56 abs Exp $
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.\" $Id: awi.4,v 1.6 2000/03/22 11:24:33 onoe Exp $
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.\"
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.Dd October 31, 1999
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.Dt AWI 4
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@ -9,52 +9,86 @@
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.Sh NAME
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.Nm awi
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.Nd
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Bay Networks BayStack 650 IEEE 802.11 PCMCIA wireless network driver
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AMD PCnetMobile IEEE 802.11 PCMCIA wireless network driver
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.Sh SYNOPSIS
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.Cd "awi* at pcmcia? function ?"
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.Sh DESCRIPTION
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.Pp
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The BayStack 650 is based on an AMD 79c930 controller, which provides
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access to 32kb of memory shared between the controller and the host.
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The
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.Nm
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driver supports various IEEE 802.11 wireless cards
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which run AMD PCnetMobile firmware based on AMD 79c930 controller.
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It provides access to 32kb of memory shared between the controller
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and the host.
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All host/device interaction is via this shared memory, which can be
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accessed either via PCMCIA memory space or I/O space.
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The
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.Nm
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driver encapsulates all IP and ARP traffic as 802.11 frames. Transmit
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speed is fixed at 1Mbps.
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driver encapsulates all IP and ARP traffic as 802.11 frames.
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.Pp
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The driver currently only works in infrastructure mode, communicating
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with an Access Point which serves as a link-layer bridge between an
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Ethernet and the wireless network.
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.Pp
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This card seems to take between 5 and 20 seconds after it has been brought up
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to synchronize with an AP. When using
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.Xr dhclient 8
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to automatically configure an address on this card, it may be
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advisable to delay the invocation of dhclient for about 10 seconds
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after the card is brought up using
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.Xr ifconfig 8
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The driver works both in infrastructure mode and in adhoc (independent
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BSS) mode.
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.Pp
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In infrastructure mode, it communicates with an Access Point
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which serves as a link-layer bridge between an Ethernet and
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the wireless network. An access point also provides roaming capability
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which allows wireless node to move between access points.
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.Pp
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In adhoc mode, it communicates peer to peer.
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Though it is more efficient to communicate between wireless nodes,
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the coverage is limited spatially due to lack of roaming capability.
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.Pp
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In addition to these two mode in IEEE 802.11 specification, the
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.Nm
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driver also supports a variant of adhoc mode out of spec, which makes
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possible to communicate with adhoc mode of
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.Xr wi 8
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driver. The NWID doesn't affect in this mode.
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.Pp
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For more information on configuring this device, see
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.Xr ifconfig 8
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and
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.Xr ifmedia 4 .
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.Sh HARDWARE
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Cards supported by the
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.Nm
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driver include:
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.Pp
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.Bl -item -offset indent
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.It
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BayStack 650 1Mbps IEEE 802.11 Frequency Hopping PCCARD adapter
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.It
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BayStack 660 2Mbps IEEE 802.11 Frequency Hopping PCCARD adapter
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.It
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Netwave AirSurfer
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.Dq Plus
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.Bl -tag -width BayStack_650x -offset indent
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.It BayStack 650
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1Mbps Frequency Hopping PCCARD adapter
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.It BayStack 660
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2Mbps Direct Sequence PCCARD adapter
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.It Icom SL-200
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2Mbps Direct Sequence PCCARD adapter
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.It Melco WLI-PCM
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2Mbps Direct Sequence PCCARD adapter
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.It NEL SSMagic
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2Mbps Direct Sequence PCCARD adapter
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.It Netwave AirSurfer Plus
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1Mbps Frequency Hopping PCCARD adapter
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.It Netwave AirSurfer Pro
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2Mbps Direct Sequence PCCARD adapter
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.El
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.Pp
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The original Xircom Netwave AirSurfer is supported by the
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.Xr cnw 4
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driver.
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.Sh MEDIA SELECTION
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The DS cards support
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.Em DS1
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and
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.Em DS2
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media types, while the FH cards support
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.Em FH1
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media type. For each media type,
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.Em adhoc
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mediaopt can be used to indicate the driver to operate in adhoc mode.
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Also,
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.Em adhoc,flag0
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mediaopt can be used for
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.Xr wi 4
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compatible adhoc mode.
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.Sh DIAGNOSTICS
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.Bl -diag
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.It "awi0: unable to allocate memory space; using i/o only"
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@ -68,42 +102,38 @@ See
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.Xr pcmcia 4
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for information on how to increase the memory available to the PCMCIA
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controller.
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.It "awi0: selftest failed (code %x)"
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The device failed to pass its internal selftest.
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.It "awi0: device failed to complete selftest (code %x)"
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The device failed to complete its self test within 5 seconds.
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.It "awi0: device timeout"
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.It "awi0: timeout waiting for command completion"
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The device failed to generate an interrupt to acknowledge a command.
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.It "awi0: failed to complete selftest (%s)"
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The device failed to complete its self test.
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.It "awi0: synced with %s ssid %s at chanset %d"
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.It "awi0: associated with %s ssid %s channel %d signal %d"
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The device has successfully synchronized with the identified Access
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Point and is ready to relay traffic.
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.It "awi0: authentication failed (reason %d)"
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.It "awi0: association failed (reason %d)"
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The access point refuses the association request from the device.
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.It "awi0: no recent beacons from %s; rescanning"
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The device has not heard a beacon from its currently associated Access
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Point recently, and is looking for a new access point.
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.It "awi0: transmit timeout"
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The device failed to generate an interrupt to acknowledge a
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transmitted packet.
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.It "awi0: large frame truncated"
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The system handed the driver a packet which was too large to transmit
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in one piece.
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.It "awi0: device enable failed"
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The system was unable to power on the card.
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.It "awi0: associated with %s, SSID: %s
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The device has successfully synchronized with the identified Access
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Point and is ready to relay traffic.
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.It "awi0: no recent beacon from %s; rescanning"
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The device has not heard a beacon from its currently associated Access
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Point recently, and is looking for a new access point.
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.It "awi0: received deauth"
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The access point the card was most recently associated with has
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forgotten about us.
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.It "awi0: failed to lock interrupt"
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The system was unable to obtain the lock to access shared memory.
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.It "awi0: command %d failed %x"
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The device failed to complete the request from the system.
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.El
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.Sh BUGS
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.Pp
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Doesn't support ad-hoc mode or WEP.
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Doesn't support WEP.
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Doesn't create IBSS itself.
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.Pp
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Doesn't yet support the BayStack 660 Direct Sequence cards.
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.Sh SEE ALSO
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.Xr arp 4 ,
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.Xr netintro 4 ,
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.Xr pcmcia 4 ,
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.Xr wi 4 ,
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.Xr cnw 4 ,
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.Xr ifmedia 4 ,
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.Xr ifconfig 8
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.Rs
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.%T Am79C930 PCnet Mobile Single-Chip Wireless LAN Media Access Controller
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@ -115,7 +145,12 @@ The
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device driver first appeared in
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.Nx 1.5 .
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.Sh AUTHOR
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The
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The initial version of the
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.Nm
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driver was written by
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.An Bill Sommerfeld Aq sommerfeld@netbsd.org .
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Then the
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.Nm
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driver module completely rewritten to support cards with DS phy and
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to support adhoc mode by
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.An Atsushi Onoe Aq onoe@netbsd.org .
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