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RUE(4)			     Kernel Interfaces Manual			  RUE(4)

NAME
     rue -- RealTek RTL8150 USB to Fast Ethernet controller driver

SYNOPSIS
     To compile this driver into the kernel, place the following lines in your
     kernel configuration file:

	   device uhci
	   device ohci
	   device usb
	   device miibus
	   device uether
	   device rue

     Alternatively, to load the driver as a module at boot time, place the
     following line in loader.conf(5):

	   if_rue_load="YES"

DESCRIPTION
     The  rue driver provides support for USB Ethernet adapters based on the Re-
     alTek RTL8150 USB to Fast Ethernet controller chip.

     The RTL8150 contains an integrated Fast Ethernet MAC, which  supports  both
     10  and 100Mbps speeds in either full or half duplex.  Although designed to
     interface with 100Mbps peripheral, the existing USB  standard  specifies  a
     maximum transfer speed of 12Mbps.	Users should therefore not expect to ac-
     tually achieve 100Mbps speeds with this device.

     The rue driver supports the following media types:

     autoselect   Enable auto selection of the media type and options.	The user
		  can  manually  override the auto selected mode by adding media
		  options to the /etc/rc.conf file.

     10baseT/UTP  Set 10Mbps operation.  The mediaopt option can also be used to
		  select either full-duplex or half-duplex modes.

     100baseTX	  Set 100Mbps (Fast Ethernet) operation.   The	mediaopt  option
		  can  also  be used to select either full-duplex or half-duplex
		  modes.

     The rue driver supports the following media options:

     full-duplex  Force full duplex operation.

     half-duplex  Force half duplex operation.

     For more information on configuring this device, see ifconfig(8).

HARDWARE
     The rue driver supports RealTek RTL8150 based USB Ethernet adapters includ-
     ing:

     *	 Buffalo (Melco Inc.) LUA-KTX
     *	 Green House GH-USB100B
     *	 LinkSys USB100M
     *	 Billionton 10/100 FastEthernet USBKR2

DIAGNOSTICS
     rue%d: watchdog timeout  A packet was queued for transmission and a  trans-
     mit command was issued, however the device failed to acknowledge the trans-
     mission before a timeout expired.

     rue%d:  rx  list init failed  The driver failed to allocate an mbuf for the
     transmitter ring.

     rue%d: no memory for rx list  The driver failed to allocate an mbuf for the
     receiver ring.

SEE ALSO
     arp(4), miibus(4), netintro(4), ng_ether(4), ifconfig(8)

     RealTek	    RTL8150	    data	 sheet, 	http://pdf.seek-
     datasheet.com/2008714/200807142333305235.pdf.

HISTORY
     The rue device driver first appeared in FreeBSD 5.1.

AUTHORS
     The rue driver was written by Shunsuke Akiyama <akiyama@FreeBSD.org>.

FreeBSD ports 15.1		November 24, 2015			  RUE(4)

Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=rue&sektion=4&manpath=FreeBSD+15.1-RELEASE+and+Ports>

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