3rd-party/linux-kernel-module-cheat
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Document PgUp, pci.sh request fact irq

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Ciro Santilli
2017-06-18 10:27:37 +01:00
parent 7831bc5150
commit ea924c948a
3 changed files with 14 additions and 0 deletions
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rootfs_overlay/pci.sh
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@@ -17,8 +17,11 @@ dd bs=4 status=none if=/dev/lkmc_pci count=1 skip=1 | od -An -t x1
# => 0F0F0F0F
# Factorial calculator.
# Request interrupt when the computation is over.
printf '\x80\x00\x00\x00' | dd bs=4 status=none of=/dev/lkmc_pci count=1 seek=8
# factorial(0xC) = 0x1c8cfc00
printf '\x0C\x00\x00\x00' | dd bs=4 status=none of=/dev/lkmc_pci count=1 seek=2
# => interrupt
sleep 1
dd bs=4 status=none if=/dev/lkmc_pci count=1 skip=2 | od -An -t x1
dd bs=4 status=none if=/dev/lkmc_pci count=1 skip=8 | od -An -t x1