SND_AC97_UPDATE(9) Control/Mixer API SND_AC97_UPDATE(9)NAME
snd_ac97_update - update the value on the given register
SYNOPSIS
int snd_ac97_update(struct snd_ac97 * ac97, unsigned short reg, unsigned short value);
ARGUMENTS
ac97
the ac97 instance
reg
the register to change
value
the value to set
DESCRIPTION
Compares the value with the register cache and updates the value only when the value is changed.
RETURN
1 if the value is changed, 0 if no change, or a negative code on failure.
COPYRIGHT Kernel Hackers Manual 3.10 June 2014 SND_AC97_UPDATE(9)
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UNW_IS_FPREG(3) Programming Library UNW_IS_FPREG(3)NAME
unw_is_fpreg -- check if a register is a floating-point register
SYNOPSIS
#include <libunwind.h>
int unw_is_fpreg(unw_regnum_t reg);
DESCRIPTION
The unw_is_fpreg() routine checks whether register number reg is a floating-point register.
This routine is normally implemented as a macro and applications should not attempt to take its address.
RETURN VALUE
The unw_is_fpreg() routine returns a non-zero value if reg is a floating-point register. Otherwise, it returns a value of 0.
THREAD AND SIGNAL SAFETY
unw_is_fpreg() is thread-safe as well as safe to use from a signal handler.
SEE ALSO libunwind(3), unw_get_reg(3), unw_set_reg(3), unw_get_fpreg(3), unw_set_fpreg(3)AUTHOR
David Mosberger-Tang
Email: dmosberger@gmail.com
WWW: http://www.nongnu.org/libunwind/.
Programming Library 16 August 2007 UNW_IS_FPREG(3)
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