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-rw-r--r--picirq.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/picirq.c b/picirq.c
index 19c4f88..9c3ea0c 100644
--- a/picirq.c
+++ b/picirq.c
@@ -53,7 +53,7 @@ pic_init(void)
outb(IO_PIC2+1, IRQ_SLAVE); // ICW3
// NB Automatic EOI mode doesn't tend to work on the slave.
// Linux source code says it's "to be investigated".
- outb(IO_PIC2+1, 0x1); // ICW4
+ outb(IO_PIC2+1, 0x3); // ICW4
// OCW3: 0ef01prs
// ef: 0x = NOP, 10 = clear specific mask, 11 = set specific mask