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PWM_GET(9) Pulse-Width Modulation (PWM) PWM_GET(9)

NAME

pwm_get - look up and request a PWM device

SYNOPSIS

struct pwm_device * pwm_get(struct device * dev, const char * con_id);

ARGUMENTS

dev
device for PWM consumer
con_id
consumer name

DESCRIPTION

Lookup is first attempted using DT. If the device was not instantiated from a device tree, a PWM chip and a relative index is looked up via a table supplied by board setup code (see pwm_add_table).
Once a PWM chip has been found the specified PWM device will be requested and is ready to be used.

RETURN

A pointer to the requested PWM device or an ERR_PTR-encoded error code on failure.

COPYRIGHT

January 2017 Kernel Hackers Manual 4.8.