Re: Should /dev/kmem support above 0x80000000 area?

["Maciej W. Rozycki" <macro@ds2.pg.gda.pl>]

On Sat, 9 Dec 2000, Ralf Baechle wrote:

> Actually there is almost nothing left that uses /dev/{mem,kmem} these days.

 Last time I checked /dev/mem worked as expected.  For Alpha /dev/mem is
used to emulate PCI/ISA I/O space accesses (ioperm(), inb/outb() and
friends) by glibc.  At least XFree86 and SVGATextMode make use of these
features.  I suppose it's the same for MIPS (I haven't checked, though). 

 In general /dev/mem is useful for poking at hardware from user space.  On
the other hand, /dev/kmem is not very useful anymore, indeed. 

-- 
+  Maciej W. Rozycki, Technical University of Gdansk, Poland   +
+--------------------------------------------------------------+
+        e-mail: macro@ds2.pg.gda.pl, PGP key available        +