Visit Our UNIX and Linux User Community

Linux and UNIX Man Pages

Test Your Knowledge in Computers #832
Difficulty: Medium
JSON is a data serialization format.
True or False?
Linux & Unix Commands - Search Man Pages

regulator_set_optimum_mode(9) [centos man page]

REGULATOR_SET_OPTIMU(9) 					   API reference					   REGULATOR_SET_OPTIMU(9)

NAME
regulator_set_optimum_mode - set regulator optimum operating mode SYNOPSIS
int regulator_set_optimum_mode(struct regulator * regulator, int uA_load); ARGUMENTS
regulator regulator source uA_load load current DESCRIPTION
Notifies the regulator core of a new device load. This is then used by DRMS (if enabled by constraints) to set the most efficient regulator operating mode for the new regulator loading. Consumer devices notify their supply regulator of the maximum power they will require (can be taken from device datasheet in the power consumption tables) when they change operational status and hence power state. Examples of operational state changes that can affect power CONSUMPTION ARE
- o Device is opened / closed. o Device I/O is about to begin or has just finished. o Device is idling in between work. This information is also exported via sysfs to userspace. DRMS will sum the total requested load on the regulator and change to the most efficient operating mode if platform constraints allow. Returns the new regulator mode or error. AUTHORS
Liam Girdwood <lrg@slimlogic.co.uk> Author. Mark Brown <broonie@opensource.wolfsonmicro.com> Wolfson Microelectronics, Author. COPYRIGHT
Kernel Hackers Manual 3.10 June 2014 REGULATOR_SET_OPTIMU(9)

Check Out this Related Man Page

STRUCT 
REGULATOR_OPS(9) API reference STRUCT REGULATOR_OPS(9) NAME
struct_regulator_ops - regulator operations. SYNOPSIS
struct regulator_ops { int (* list_voltage) (struct regulator_dev *, unsigned selector); int (* set_voltage) (struct regulator_dev *, int min_uV, int max_uV); int (* get_voltage) (struct regulator_dev *); int (* set_current_limit) (struct regulator_dev *,int min_uA, int max_uA); int (* get_current_limit) (struct regulator_dev *); int (* enable) (struct regulator_dev *); int (* disable) (struct regulator_dev *); int (* is_enabled) (struct regulator_dev *); int (* set_mode) (struct regulator_dev *, unsigned int mode); unsigned int (* get_mode) (struct regulator_dev *); int (* enable_time) (struct regulator_dev *); int (* get_status) (struct regulator_dev *); unsigned int (* get_optimum_mode) (struct regulator_dev *, int input_uV,int output_uV, int load_uA); int (* set_suspend_voltage) (struct regulator_dev *, int uV); int (* set_suspend_enable) (struct regulator_dev *); int (* set_suspend_disable) (struct regulator_dev *); int (* set_suspend_mode) (struct regulator_dev *, unsigned int mode); }; MEMBERS
list_voltage Return one of the supported voltages, in microvolts; zero if the selector indicates a voltage that is unusable on this system; or negative errno. Selectors range from zero to one less than regulator_desc.n_voltages. Voltages may be reported in any order. set_voltage Set the voltage for the regulator within the range specified. The driver should select the voltage closest to min_uV. get_voltage Return the currently configured voltage for the regulator. set_current_limit Configure a limit for a current-limited regulator. get_current_limit Get the configured limit for a current-limited regulator. enable Configure the regulator as enabled. disable Configure the regulator as disabled. is_enabled Return 1 if the regulator is enabled, 0 if not. May also return negative errno. set_mode Set the configured operating mode for the regulator. get_mode Get the configured operating mode for the regulator. enable_time Time taken for the regulator voltage output voltage to stabalise after being enabled, in microseconds. get_status Return actual (not as-configured) status of regulator, as a REGULATOR_STATUS value (or negative errno) get_optimum_mode Get the most efficient operating mode for the regulator when running with the specified parameters. set_suspend_voltage Set the voltage for the regulator when the system is suspended. set_suspend_enable Mark the regulator as enabled when the system is suspended. set_suspend_disable Mark the regulator as disabled when the system is suspended. set_suspend_mode Set the operating mode for the regulator when the system is suspended. DESCRIPTION
This struct describes regulator operations which can be implemented by regulator chip drivers. AUTHORS
Liam Girdwood <lrg@slimlogic.co.uk> Author. Mark Brown <broonie@opensource.wolfsonmicro.com> Wolfson Microelectronics, Author. COPYRIGHT
Kernel Hackers Manual 2.6. July 2010 STRUCT REGULATOR_OPS(9)

Featured Tech Videos