- NetBSD Manual Pages
MCD(4) NetBSD Kernel Interfaces Manual MCD(4)
Powered by man-cgi (2020-09-24).
Maintained for NetBSD
by Kimmo Suominen.
Based on man-cgi by Panagiotis Christias.
mcd -- Mitsumi CD-ROM driver
mcd0 at isa? port 0x300 irq 10
The mcd driver provides support for Mitsumi CD-ROM controller and drive
on the isa(4) bus.
/dev/cd[0-9][a-h] block mode Mitsumi CD-ROM devices
/dev/rmcd[0-9][a-h] raw mode Mitsumi CD-ROM devices
intro(4), isa(4), ne(4), we(4)
The mcd hardware is difficult to probe accurately. Historically, the
mcd probe would accept any return values as indicating that an mcd drive
was present. Other devices, particularly ne(4) or we(4), would then be
incorrectly claimed by the mcd driver. The driver now only accepts
result codes known to indicate Mitsumi-compatible CD controllers, but may
reject some mcd hardware which returns other result codes.
options MCD_PROMISC enables the original promiscuous probe behaviour.
Use with extreme caution.
NetBSD 9.99 November 29, 1994 NetBSD 9.99