函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:lib\test_kmod.c Create Date:2022-07-27 07:32:11
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：config_show

函数原型：static ssize_t config_show(struct device *dev, struct device_attribute *attr, char *buf)

返回类型：ssize_t

参数：

类型参数名称
struct device *dev
struct device_attribute *attr
char *buf
463  test_dev等于dev_to_test_dev(dev)
464  config等于config
465  len等于0
467  mutex_lock( & config_mutex)
469  len加等于snprintf - Format a string and place it in a buffer*@buf: The buffer to place the result into*@size: The size of the buffer, including the trailing null space*@fmt: The format string to use*@
473  len加等于snprintf - Format a string and place it in a buffer*@buf: The buffer to place the result into*@size: The size of the buffer, including the trailing null space*@fmt: The format string to use*@
477  len加等于snprintf - Format a string and place it in a buffer*@buf: The buffer to place the result into*@size: The size of the buffer, including the trailing null space*@fmt: The format string to use*@
482  如果test_driver则len加等于snprintf - Format a string and place it in a buffer*@buf: The buffer to place the result into*@size: The size of the buffer, including the trailing null space*@fmt: The format string to use*@
486  否则len加等于snprintf - Format a string and place it in a buffer*@buf: The buffer to place the result into*@size: The size of the buffer, including the trailing null space*@fmt: The format string to use*@
490  如果test_fs则len加等于snprintf - Format a string and place it in a buffer*@buf: The buffer to place the result into*@size: The size of the buffer, including the trailing null space*@fmt: The format string to use*@
494  否则len加等于snprintf - Format a string and place it in a buffer*@buf: The buffer to place the result into*@size: The size of the buffer, including the trailing null space*@fmt: The format string to use*@
498  mutex_unlock( & config_mutex)
500  返回:len