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 rue
Alternatively, to load the driver as a module at boot time, place the following
line in
loader.conf(5):
DESCRIPTION¶
The
rue
driver provides support for USB
Ethernet adapters based on the RealTek 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 actually
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 including:
- 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 transmit command was issued,
however the device failed to acknowledge the transmission 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.seekdatasheet.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⟩.