snd_soc_component_update_bits

snd_soc_component_update_bits_async
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Name

snd_soc_component_update_bits_async — Perform asynchronous read/modify/write cycle

Synopsis

`int snd_soc_component_update_bits_async (`	struct snd_soc_component * `component`,
	unsigned int `reg`,
	unsigned int `mask`,
	unsigned int `val)`;

Arguments

component: Component to update
reg: Register to update
mask: Mask that specifies which bits to update
val: New value for the bits specified by mask

Description

This function is similar to snd_soc_component_update_bits, but the update operation is scheduled asynchronously. This means it may not be completed when the function returns. To make sure that all scheduled updates have been completed snd_soc_component_async_complete must be called.

Return

1 if the operation was successful and the value of the register changed, 0 if the operation was successful, but the value did not change. Returns a negative error code otherwise.