Provided by: freebsd-manpages_7.2-1_all
snc - National Semiconductor DP8393X SONIC Ethernet adapter driver
The snc driver provides support for the National Semiconductor SONIC
The snc driver supports the following cards:
· National Semiconductor DP83934AVQB
· NEC PC-9801-83
· NEC PC-9801-84
· NEC PC-9801-103
· NEC PC-9801-104
· NEC PC-9801N-15
· NEC PC-9801N-25
· NEC PC-9801N-J02 PCMCIA
· NEC PC-9801N-J02R PCMCIA
The snc driver also includes support for the National Semiconductor
NS46C46 as 64 * 16 bits Microwave Serial EEPROM.
Accessing SONIC card data structures and registers as 32 bit values makes
code endianness independent. The SONIC is however always in big-endian
mode so it is necessary to ensure that data structures shared between the
CPU and the SONIC card are always in big-endian order. The snc driver
supports the PC-98 C-Bus, and PnP buses. Support is also provided for
the legacy C-Bus.
The following driver specific error messages may be reported:
snc%d: snc_nec16_register_irq: unsupported irq (%d) The card returned an
IRQ which is not supported by the driver.
snc%d: invalid packet length %d bytes An attempt to transfer a data
packet failed due to an invalid packet length.
The snc driver was ported from NetBSD by Motomichi Matsuzaki
〈firstname.lastname@example.org〉 and Hiroshi Yamashita 〈email@example.com〉.
It first appeared in FreeBSD 4.2. This manual page first appeared in
This manual page was written by Tom Rhodes 〈trhodes@FreeBSD.org〉.
Currently the snc driver only works on the PC-98 architecture. It should
probably work on the i386 architecture as well.