table of contents
WAIT_ON_BIT_ACTION(9) | Driver Basics | WAIT_ON_BIT_ACTION(9) |
NAME¶
wait_on_bit_action - wait for a bit to be cleared
SYNOPSIS¶
int wait_on_bit_action(unsigned long * word, int bit, wait_bit_action_f * action, unsigned mode);
ARGUMENTS¶
word
bit
action
mode
DESCRIPTION¶
Use the standard hashed waitqueue table to wait for a bit to be cleared, and allow the waiting action to be specified. This is like wait_on_bit but allows fine control of how the waiting is done.
Returned value will be zero if the bit was cleared, or non-zero if the process received a signal and the mode permitted wakeup on that signal.
COPYRIGHT¶
January 2017 | Kernel Hackers Manual 4.8. |