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test_and_set_bit_lock(9) [centos man page]

TEST_AND_SET_BIT_LOC(9) 				     Basic C Library Functions					   TEST_AND_SET_BIT_LOC(9)

test_and_set_bit_lock - Set a bit and return its old value for lock SYNOPSIS
int test_and_set_bit_lock(int nr, volatile unsigned long * addr); ARGUMENTS
nr Bit to set addr Address to count from DESCRIPTION
This is the same as test_and_set_bit on x86. COPYRIGHT
Kernel Hackers Manual 3.10 June 2014 TEST_AND_SET_BIT_LOC(9)

Check Out this Related Man Page

outb(9F)						   Kernel Functions for Drivers 						  outb(9F)

outb, outw, outl, repoutsb, repoutsw, repoutsd - write to an I/O port SYNOPSIS
#include <sys/ddi.h> #include <sys/sunddi.h> void outb(int port, unsigned char value); void outw(int port, unsigned short value); void outl(int port, unsigned long value); void repoutsb(int port, unsigned char *addr, int count); void repoutsw(int port, unsigned short *addr, int count); void repoutsd(int port, unsigned long *addr, int count); INTERFACE LEVEL
The functions described here are obsolete. For the outb(), outw(), and outl() functions use, respectively, ddi_put8(9F), ddi_put8(9F), and ddi_put8(9F) instead. For repoutsb(), repoutsw(), andrepoutsl(), use, respectively, ddi_rep_put8(9F), ddi_rep_put8(9F), and ddi_rep_put8(9F) instead. PARAMETERS
port A valid I/O port address. value The data to be written to the I/O port. addr The address of a buffer from which the values will be fetched. count The number of values to be written to the I/O port. DESCRIPTION
These routines write data of various sizes to the I/O port with the address specified by port. The outb(), outw(), and outl() functions write 8 bits, 16 bits, and 32 bits of data respectively, writing the data specified by value. The repoutsb(), repoutsw(), and repoutsd() functions write multiple 8-bit, 16-bit, and 32-bit values, respectively. count specifies the number of values to be written. addr is a pointer to a buffer from which the output values are fetched. CONTEXT
These functions may be called from user, interrupt, or kernel context. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Architecture |x86 | +-----------------------------+-----------------------------+ |Interface Stability |Obsolete | +-----------------------------+-----------------------------+ SEE ALSO
isa(4), attributes(5), ddi_put8(9F), ddi_put8(9F), ddi_put8(9F), ddi_rep_put8(9F), ddi_rep_put8(9F), ddi_rep_put8(9F), inb(9F) Writing Device Drivers SunOS 5.11 16 Jan 2006 outb(9F)
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