sdw_stream_add_slave(9)

✨ sdw_stream_add_slave(9) ✨

okay so this is a page from the Kernel API Manual, bestie, and it's all about sdw_stream_add_slave(9) — literally the function that allocates and adds a master/slave runtime to a stream 💅

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🎀 NAME 🎀

sdw_stream_add_slave — allocate and add master/slave runtime to a stream ✨

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🦋 SYNOPSIS 🦋

int sdw_stream_add_slave (struct sdw_slave *slave , struct
sdw_stream_config *stream_config , const struct sdw_port_config
*port_config , unsigned int num_ports , struct sdw_stream_runtime
*stream );

like, that's the whole signature, no cap 🫶

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🌸 ARGUMENTS 🌸

• slave — the SDW Slave instance, aka the main character of this call 👑
• stream_config — stream configuration for the audio stream, the whole vibe check for your stream 🎧
• port_config — port configuration for the audio stream, where the ports get their little fit 💖
• num_ports — number of ports, bestie, just count 'em 🔢
• stream — the SoundWire stream itself, the moment ✨

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💜 DESCRIPTION 💜

okay so real talk: it is expected that the Slave is added before adding Master to the Stream. like, order matters, periodt 🙈

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🌈 SEE ALSO 🌈

Kernel file ./drivers/soundwire/stream.c — and then the whole friend group of related calls, fr fr:

• sdw_program_port_params(9)
• sdw_enable_disable_slave_ports(9)
• sdw_enable_disable_ports(9)
• sdw_prep_deprep_ports(9)
• sdw_notify_config(9)
• sdw_program_params(9)
• sdw_ml_sync_bank_switch(9)
• sdw_slave_rt_alloc(9)
• sdw_slave_rt_config(9)
• sdw_slave_rt_free(9)
• sdw_master_rt_alloc(9)
• sdw_master_rt_config(9)
• sdw_master_rt_free(9)
• sdw_config_stream(9)
• sdw_get_slave_dpn_prop(9)
• sdw_acquire_bus_lock(9)
• sdw_release_bus_lock(9)
• sdw_prepare_stream(9)
• sdw_enable_stream(9)
• sdw_disable_stream(9)
• sdw_deprepare_stream(9)
• sdw_alloc_stream(9)
• sdw_startup_stream(9)
• sdw_shutdown_stream(9)
• sdw_release_stream(9)
• sdw_stream_add_master(9)
• sdw_stream_remove_master(9)
• sdw_stream_remove_slave(9)

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and that's the whole page, bestie 💖 it lives over at ./drivers/soundwire, stamped October 2026 — go off, you iconic kernel dev you 🌟🫶