MOS(4) FreeBSD Kernel Interfaces Manual MOS(4)
NAME
mos - MosChip MCS7730/7830/7832 10/100 USB Ethernet device
SYNOPSIS
mos* at uhub?
DESCRIPTION
The mos driver provides support for USB Ethernet adapters based on the
MosChip MCS7730, MCS7830 and MCS7832 USB 2.0 chipsets, including the
following:
Delock 61147
Sitecom LN-030
Syba SY-U2LAN
All adapters operate with either USB 1.x or USB 2.0 controllers, though
performance with 1.x controllers is limited since the USB 1.x standard
specifies a maximum transfer speed of 12Mbps. Users with USB 1.x
controllers should therefore not expect to actually achieve 100Mbps
speeds with these devices.
A 64-bit multicast hash table is supported, single perfect filter entry
for the station address, all-multicast mode, and promiscuous mode.
Packets are received and transmitted over separate USB bulk transfer
endpoints.
The mos driver supports the following media types:
autoselect Enable autoselection of the media type and options (this is
the default). The user can manually override the
autoselected mode by adding media options to the appropriate
hostname.if(5) file.
10baseT Set 10Mbps operation.
100baseTX Set 100Mbps (Fast Ethernet) operation.
The mos 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).
DIAGNOSTICS
mos0: 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.
mos0: no memory for rx list The driver failed to allocate an mbuf for
the receiver ring.
SEE ALSO
arp(4), ifmedia(4), intro(4), netintro(4), usb(4), hostname.if(5),
ifconfig(8)
MosChip India, https://moschip.com.
HISTORY
The mos device driver first appeared in OpenBSD 4.5.
AUTHORS
The mos driver was written by Johann Christian Rode <
[email protected]>.
FreeBSD 14.1-RELEASE-p8 February 18, 2022 FreeBSD 14.1-RELEASE-p8