local powerlib implementations
[Libpower]

Classes
struct	apm_info
	apm related header holding apm information More...
struct	capacity_snapshot
	An array of this one is used to estimate the remaining battery capacity in minutes. More...
Functions
int	getDevicesNum (const char *dir_name)
	get amount of entries in a directory
int	getColonValue (FILE *file, char *value, const size_t value_size, char *def, const size_t def_size)
	get next value which is seperated by a colon
int	getDirEntry (const int num, char *file, const size_t size_file, const char *dir_in)
	get a directory entry
int	_write_line (const char *filename, const char *fmt,...)
	write a line to a file
int	read_apm_info (apm_info *i)
	reads out information from /proc/apm
int	check_ACPI_dir (const char *dir)
	check whether module has been loaded and device is available

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Function Documentation

int _write_line (  const char *  filename, const char *  fmt,   ... )

write a line to a file (e.g.: write "3\n" to /acpi/sleep) Parameters: filename  the filename to write to fmt  format rule ...  lines to write Returns: < 0 on error

int check_ACPI_dir (  const char *  dir  )  [inline]

check whether module has been loaded and device is available Parameters: dir  acpi directory Return values: 1  on success NO_MODULE_ERROR  NO_DEVICE_ERROR

int getColonValue (  FILE *  file, char *  value, const size_t  value_size, char *  def, const size_t  def_size )

get next value which is seperated by a colon reads a line and parsed it according to: "def[spaces]*:[spaces]*value[spaces]* e.g.: var: 56 mWh returns 56 mWh in value and var in def Parameters: file  the filename value  value to store the left side of the colon value_size  the size of the value def  value to store the right side of the colon def_size  size of def Return values: -1  if no colon ':' if found

int getDevicesNum (  const char *  dir_name  )

get amount of entries in a directory use this to determine available devices Parameters: dir_name  directory Returns: number of devices, < 0 on error

int getDirEntry (  const int  num, char *  file, const size_t  size_file, const char *  dir_in )

get a directory entry file: directory entry searched, e.g.: BAT0 give directory and position of the searched file position is determined by just looping over the directory directory . and .. are not counted. Parameters: num  0-(number of directories - 1) file  the filename to search for size_file  the size of the file dir_in  the directory the file is in Return values: 1  if num directory entry(e.g. BAT0) has beend found -1  if the num directory entry does not exist

int read_apm_info (  apm_info *  i  )

reads out information from /proc/apm Parameters: i  apm_info struct which gets filled with information Returns: < 0 on error Return values: 1  on success, -1  if APM notinstalled -2  if APM installed, but old version.

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