MCD(4)                  NetBSD Kernel Interfaces Manual                 MCD(4)

NAME
     mcd -- Mitsumi CD-ROM driver

SYNOPSIS
     mcd0 at isa? port 0x300 irq 10
     options MCD_PROMISC

DESCRIPTION
     The mcd driver provides support for Mitsumi CD-ROM controller and drive
     on the isa(4) bus.

FILES
     /dev/cd[0-9][a-h]    block mode Mitsumi CD-ROM devices
     /dev/rmcd[0-9][a-h]  raw mode Mitsumi CD-ROM devices

SEE ALSO
     intro(4), isa(4), ne(4), we(4)

BUGS
     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 5.0.1                   November 29, 1994                  NetBSD 5.0.1

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