Function report |
Source Code:arch\x86\kernel\i8259.c |
Create Date:2022-07-28 07:40:46 |
| Last Modify:2020-03-12 14:18:49 | Copyright©Brick |
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| Annotation kernel can get tool activity | Download SCCT | Chinese |
Name:probe_8259A
Proto:static int probe_8259A(void)
Type:int
Parameter:Nothing
| 304 | probe_val = ~(1 << 8259A PIC related value ) |
| 313 | raw_spin_lock_irqsave( & i8259A_lock, flags) |
| 315 | Basic port I/O |
| 316 | Basic port I/O |
| 317 | new_val = inb(PIC_MASTER_IMR) |
| 319 | printk(formational "Using NULL legacy PIC\n") |
| 320 | legacy_pic = & null_legacy_pic |
| 323 | raw_spin_unlock_irqrestore( & i8259A_lock, flags) |
| 324 | Return nr_legacy_irqs() |
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