Martin Costabel wrote:

F13 (keycode 0x69) works for me as MagicSysRq (ADB keyboard, kernels
2.2.x or 2.4.0-x).

Ah, well no F13 or equiv. combo on a Pismo. Grepping through
the sources it doesn't appear there is any bootparm or /proc
entry to change it... So changing it to 0x6f in
/arc/ppc/kernel/pmac_setup.c and rebuilding it should
give you F12 instead.

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