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>ISA legacy functions</H1
><P
> On older kernels (2.2 and earlier) the ISA bus could be read or
written with these functions and without ioremap being used. This is
no longer true in Linux 2.4. A set of equivalent functions exist for
easy legacy driver porting. The functions available are prefixed
with 'isa_' and are <TT
CLASS="FUNCTION"
>isa_readb</TT
>,
<TT
CLASS="FUNCTION"
>isa_writeb</TT
>, <TT
CLASS="FUNCTION"
>isa_readw</TT
>,
<TT
CLASS="FUNCTION"
>isa_writew</TT
>, <TT
CLASS="FUNCTION"
>isa_readl</TT
>,
<TT
CLASS="FUNCTION"
>isa_writel</TT
>, <TT
CLASS="FUNCTION"
>isa_memcpy_fromio</TT
>
and <TT
CLASS="FUNCTION"
>isa_memcpy_toio</TT
>
</P
><P
> These functions should not be used in new drivers, and will
eventually be going away.
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