Updated: 2020/Jul/29


MOS(4)                       Device Drivers 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, 2.0, or 3.x 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
                 ifconfig.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
     See usbnet(4) for diagnostics.

SEE ALSO
     arp(4), ifmedia(4), intro(4), netintro(4), usb(4), usbnet(4),
     ifconfig.if(5), ifconfig(8), usbnet(9)

     MosChip India, http://www.moschip.com.

HISTORY
     The mos driver first appeared in OpenBSD 4.5.  It was ported to NetBSD by
     Matthew R. Green <mrg@eterna.com.au> and first appeared in NetBSD 10.0.

AUTHORS
     The mos driver was written by Johann Christian Rode <jcrode@gmx.net>.

NetBSD 9.99                     August 24, 2019                    NetBSD 9.99