Function report |
Source Code:arch\x86\kernel\apic\io_apic.c |
Create Date:2022-07-28 08:29:38 |
Last Modify:2020-03-16 21:24:45 | Copyright©Brick |
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Name:irq_polarity
Proto:static int irq_polarity(int idx)
Type:int
Parameter:
Type | Parameter | Name |
---|---|---|
int | idx |
806 | Case & == MP_IRQPOL_DEFAULT |
808 | If st_bit - Determine whether a bit is set*@nr: bit number to test*@addr: Address to start counting from Then Return default_ISA_polarity(idx) |
810 | Else Return default_PCI_polarity(idx) |
812 | Case & == MP_IRQPOL_ACTIVE_HIGH |
813 | Return IOAPIC_POL_HIGH |
814 | Case & == MP_IRQPOL_RESERVED |
815 | pr_warn("IOAPIC: Invalid polarity: 2, defaulting to low\n") |
817 | Case & == MP_IRQPOL_ACTIVE_LOW |
818 | Default |
819 | Return IOAPIC_POL_LOW |
Name | Describe |
---|---|
acpi_get_override_irq |
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