SND_PCM_SGBUF_OPS_PA(9) PCM API SND_PCM_SGBUF_OPS_PA(9)NAME
snd_pcm_sgbuf_ops_page - get the page struct at the given offset
SYNOPSIS
struct page * snd_pcm_sgbuf_ops_page(struct snd_pcm_substream * substream, unsigned long offset);
ARGUMENTS
substream
the pcm substream instance
offset
the buffer offset
DESCRIPTION
Used as the page callback of PCM ops.
RETURN
The page struct at the given buffer offset. NULL on failure.
COPYRIGHT Kernel Hackers Manual 3.10 June 2014 SND_PCM_SGBUF_OPS_PA(9)
Check Out this Related Man Page
OFFTIME(3) BSD Library Functions Manual OFFTIME(3)NAME
offtime, timeoff, timegm, timelocal -- convert date and time
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <time.h>
struct tm *
offtime(const time_t * clock, long int offset);
struct tm *
offtime_r(const time_t * clock, long int offset, struct tm *ret);
time_t
timeoff(struct tm * tm, long int offset);
time_t
timegm(struct tm * tm);
time_t
timelocal(struct tm * tm);
DESCRIPTION
These functions are inspired by C standard interfaces named similarly.
offtime() converts the calendar time clock, offset by offset seconds, into broken-down time, expressed as Coordinated Universal Time (UTC).
offtime_r() is similar to offtime() but it places the returned struct tm * in the user supplied ret argument.
timeoff() converts the broken-down time tm, expressed as UTC, offset by offset seconds, into a calendar time value.
timegm() converts the broken-down time tm into a calendar time value, effectively being the inverse of gmtime(3). It is equivalent to the C
standard function mktime(3) operating in UTC.
timelocal() converts the broken down time tm, expressed as local time, into a calendar time value. It is equivalent to the C standard func-
tion mktime(3), and is provided for symmetry only.
SEE ALSO ctime(3), tm(3), tzset(3)BSD April 14, 2011 BSD
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