Name

fe-close — Close a frontend device

Synopsis

#include <unistd.h>
int close(int fd);
 

Arguments

fd

File descriptor returned by open().

Description

This system call closes a previously opened front-end device. After closing a front-end device, its corresponding hardware might be powered down automatically.

Return Value

The function returns 0 on success, -1 on failure and the errno is set appropriately. Possible error codes:

EBADF

fd is not a valid open file descriptor.