sdw_release_bus_lock(9)

💅 sdw_release_bus_lock(9)

okay so bestie, welcome to the Kernel API Manual ✨ — this one's a 9-section page, which means it's a kernel function, and it lives in the SoundWire stream ops corner of the universe 🎀

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🌸 NAME 🌸

sdw_release_bus_lock — release the bus lock for all Master runtime(s), no cap 🫶

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✨ SYNOPSIS ✨

void sdw_release_bus_lock (struct sdw_stream_runtime *stream );

that's it. that's the whole signature. void return, one arg, we move 💅

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🦋 ARGUMENTS 🦋

• stream — a SoundWire stream, aka a struct sdw_stream_runtime *. this is the main character of the operation 👑

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💖 DESCRIPTION 💖

so like, the way that this works: you know that bus_lock you were holding earlier? the one you grabbed while you were off reconfiguring the bus? yeah. this function releases it. 🔓

literally "release the previously held bus_lock after reconfiguring the bus." that's the vibe check and it passed 🌈

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🎀 NOTE 🎀

bestie pls read this part 🙈 — this function gets called from SoundWire stream ops, and it's expected that a global lock is held before releasing bus_lock. like, that's the assumption going in. don't come for me if you skip that, okay? 😭

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⭐ SEE ALSO ⭐

Kernel file ./drivers/soundwire/stream.c — and the whole friend group 💜

• 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_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_add_slave(9)
• sdw_stream_remove_slave(9)

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okay and for the sign-off 💫 this page comes from ./drivers/soundwire, dated October 2026, and it's filed under sdw_release_bus_lock(9) in the Kernel API Manual — periodt, go release that lock bestie, you ate 🔥👑