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Update linux-initialization-7.md

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0xAX 2015-05-03 20:23:52 +06:00
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Initialization/linux-initialization-7.md
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@ -82,14 +82,14 @@ This function check `io_delay_override` variable and overrides I/O delay port if
```
io_delay= [X86] I/O delay method
0x80
Standard port 0x80 based delay
0xed
Alternate port 0xed based delay (needed on some systems)
udelay
Simple two microseconds delay
none
No delay
0x80
Standard port 0x80 based delay
0xed
Alternate port 0xed based delay (needed on some systems)
udelay
Simple two microseconds delay
none
No delay
```
We can see `io_delay` command line parameter setup with the `early_param` macro in the [arch/x86/kernel/io_delay.c](https://github.com/torvalds/linux/blob/master/arch/x86/kernel/io_delay.c)