CHANGE_BIT(9) Basic C Library Functions CHANGE_BIT(9)
NAME change_bit - Toggle a bit in memory
SYNOPSIS void change_bit(int nr, volatile unsigned long * addr);
ARGUMENTS nr Bit to change
addr Address to start counting from
DESCRIPTION change_bit is atomic and may not be reordered. Note that nr may be almost arbitrarily large; this function is not restricted to acting on a single-word quantity.
COPYRIGHT Kernel Hackers Manual 2.6. July 2015 CHANGE_BIT(9)