GENPHY man page on BSDOS

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GENPHY(4)		    BSD Programmer's Manual		     GENPHY(4)

NAME
     GENPHY - Generic Physical layer (PHY) driver

SYNOPSIS
     genphy* at de? phy ? flags 0x<PHYid1><PHYid2>

DESCRIPTION
     The genphy driver supports generic PHYceiver devices (PHY) for 10 and 100
     Mb/s Ethernet. This device driver is called upon by network device
     drivers; no direct administrative control is provided.

     As PHYceivers are all slightly different, each chip requires its own spe-
     cialized driver. For debugging purposes however, this generic driver only
     uses the standard mechanisms as defined in 802.3u and therefore provides
     limited, but generic, support.  This is not a replacement for a dedicated
     driver.

     As different PHY chips have different identifications, the ID of a chip
     can be coded in the flags field of the kernel configuration file.	Please
     check the source for details.

     The ifconfig(8) command in conjunction with the device driver making us-
     ing of this drivers services provides an administrative interface that
     allows various physical level parameters (such as duplex, speed, and
     loopback) to be controlled.

SEE ALSO
     ifconfig(8)

4th Berkeley Distribution	August 22, 1997				     1
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