函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:arch\x86\kernel\i8259.c Create Date:2022-07-27 08:40:26
Last Modify:2020-03-12 14:18:49 Copyright©Brick
首页 函数Tree
注解内核,赢得工具下载SCCTEnglish

函数名称：probe_8259A

函数原型：static int probe_8259A(void)

返回类型：int

参数：无

304  probe_val等于1左移8259A PIC related value 位的值的反
313  raw_spin_lock_irqsave( & i8259A_lock, flags)
315  Basic port I/O
316  Basic port I/O
317  new_val等于从端口输入字节
318  如果new_val不等于probe_val则
319  printk(formational "Using NULL legacy PIC\n")
320  legacy_pic = & null_legacy_pic
323  raw_spin_unlock_irqrestore( & i8259A_lock, flags)
324  返回:nr_legacy_irqs()