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Cygwin consists of three parts: a dynamic-link library (DLL) as an API compatibility layer in the form of a C standard library providing a substantial part of the POSIX API functionality, an extensive collection of software tools and applications that provide a Unix-like look and feel, and an MOTIF-based window manager.
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struct_regulation_constraints(9) [centos man page]

STRUCT 
REGULATION_CO(9) API reference STRUCT REGULATION_CO(9) NAME
struct_regulation_constraints - regulator operating constraints. SYNOPSIS
struct regulation_constraints { const char * name; int min_uV; int max_uV; int uV_offset; int min_uA; int max_uA; unsigned int valid_modes_mask; unsigned int valid_ops_mask; int input_uV; struct regulator_state state_disk; struct regulator_state state_mem; struct regulator_state state_standby; suspend_state_t initial_state; unsigned int initial_mode; unsigned int ramp_delay; unsigned always_on:1; unsigned boot_on:1; unsigned apply_uV:1; }; MEMBERS
name Descriptive name for the constraints, used for display purposes. min_uV Smallest voltage consumers may set. max_uV Largest voltage consumers may set. uV_offset Offset applied to voltages from consumer to compensate for voltage drops. min_uA Smallest current consumers may set. max_uA Largest current consumers may set. valid_modes_mask Mask of modes which may be configured by consumers. valid_ops_mask Operations which may be performed by consumers. input_uV Input voltage for regulator when supplied by another regulator. state_disk State for regulator when system is suspended in disk mode. state_mem State for regulator when system is suspended in mem mode. state_standby State for regulator when system is suspended in standby mode. initial_state Suspend state to set by default. initial_mode Mode to set at startup. ramp_delay Time to settle down after voltage change (unit: uV/us) always_on Set if the regulator should never be disabled. boot_on Set if the regulator is enabled when the system is initially started. If the regulator is not enabled by the hardware or bootloader then it will be enabled when the constraints are applied. apply_uV Apply the voltage constraint when initialising. DESCRIPTION
This struct describes regulator and board/machine specific constraints. 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 STRUCT REGULATION_CO(9)

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STRUCT 
REGULATOR_DES(9) API reference STRUCT REGULATOR_DES(9) NAME
struct_regulator_desc - Static regulator descriptor SYNOPSIS
struct regulator_desc { const char * name; const char * supply_name; int id; bool continuous_voltage_range; unsigned n_voltages; struct regulator_ops * ops; int irq; enum regulator_type type; struct module * owner; unsigned int min_uV; unsigned int uV_step; unsigned int linear_min_sel; unsigned int ramp_delay; const unsigned int * volt_table; unsigned int vsel_reg; unsigned int vsel_mask; unsigned int apply_reg; unsigned int apply_bit; unsigned int enable_reg; unsigned int enable_mask; bool enable_is_inverted; unsigned int bypass_reg; unsigned int bypass_mask; unsigned int enable_time; }; MEMBERS
name Identifying name for the regulator. supply_name Identifying the regulator supply id Numerical identifier for the regulator. continuous_voltage_range Indicates if the regulator can set any voltage within constrains range. n_voltages Number of selectors available for ops.list_voltage. ops Regulator operations table. irq Interrupt number for the regulator. type Indicates if the regulator is a voltage or current regulator. owner Module providing the regulator, used for refcounting. min_uV Voltage given by the lowest selector (if linear mapping) uV_step Voltage increase with each selector (if linear mapping) linear_min_sel Minimal selector for starting linear mapping ramp_delay Time to settle down after voltage change (unit: uV/us) volt_table Voltage mapping table (if table based mapping) vsel_reg Register for selector when using regulator_regmap_X_voltage_ vsel_mask Mask for register bitfield used for selector apply_reg Register for initiate voltage change on the output when using regulator_set_voltage_sel_regmap apply_bit Register bitfield used for initiate voltage change on the output when using regulator_set_voltage_sel_regmap enable_reg Register for control when using regmap enable/disable ops enable_mask Mask for control when using regmap enable/disable ops enable_is_inverted A flag to indicate set enable_mask bits to disable when using regulator_enable_regmap and friends APIs. bypass_reg Register for control when using regmap set_bypass bypass_mask Mask for control when using regmap set_bypass enable_time Time taken for initial enable of regulator (in uS). DESCRIPTION
Each regulator registered with the core is described with a structure of this type and a struct regulator_config. This structure contains the non-varying parts of the regulator description. 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 STRUCT REGULATOR_DES(9)

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