函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\time\posix-clock.c Create Date:2022-07-27 11:48:29
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：posix_clock_ioctl

函数原型：static long posix_clock_ioctl(struct file *fp, unsigned int cmd, unsigned long arg)

返回类型：long

参数：

类型参数名称
struct file *fp
unsigned intcmd
unsigned longarg
75  clk等于Returns NULL if the posix_clock instance attached to 'fp' is old and stale.
76  err等于负ENOTTY
78  如果非clk则返回:负ENODEV
81  如果ioctl则err等于ioctl(clk, cmd, arg)
84  put_posix_clock(clk)
86  返回:err