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.