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NetBSD 6.1.5 - man page for mcd (netbsd section 4)

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MCD(4)				   BSD 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, par-
     ticularly 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 cau-
     tion.

BSD					November 29, 1994				      BSD
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