scmi_protocol_msg_check(9)

💖 scmi_protocol_msg_check(9) 💖

okay bestie, welcome to the Kernel API Manual entry for scmi_protocol_msg_check(9) — yes, the whole thing is right here and it's lowkey adorable. ✨

🌸 NAME 🌸

scmi_protocol_msg_check — check protocol message attributes. 💅

💜 SYNOPSIS 💜

int scmi_protocol_msg_check (const struct scmi_protocol_handle *ph , u32
       message_id , u32 *attributes );

🎀 ARGUMENTS 🎀

• ph — a reference to the protocol handle. 🫶
• message_id — the ID of the message to check. 🔍
• attributes — a parameter to optionally return the retrieved message attributes, in case of Success. ✨

🦋 DESCRIPTION 🦋

okay so this is a helper that checks protocol message attributes for a specific protocol and message pair. literally that's the vibe: protocol + message = attributes check, no cap. 💫

⭐ RETURN ⭐

0 on SUCCESS. 🎉

👑 SEE ALSO 👑

the whole squad is here, bestie — Kernel file ./drivers/firmware/arm_scmi/driver.c, plus:

• struct scmi_xfers_info(9)
• struct scmi_protocol_instance(9)
• struct scmi_info(9)
• scmi_create_protocol_devices(9)
• scmi_xfer_token_set(9)
• scmi_xfer_token_clear(9)
• scmi_xfer_inflight_register_unlocked(9)
• scmi_xfer_inflight_register(9)
• scmi_xfer_raw_inflight_register(9)
• scmi_xfer_pending_set(9)
• scmi_xfer_get(9)
• scmi_xfer_raw_get(9)
• scmi_xfer_raw_channel_get(9)
• __scmi_xfer_put(9)
• scmi_xfer_raw_put(9)
• scmi_xfer_lookup_unlocked(9)
• scmi_bad_message_trace(9)
• scmi_msg_response_validate(9)
• scmi_xfer_state_update(9)
• scmi_xfer_command_acquire(9)
• scmi_rx_callback(9)
• xfer_put(9)
• scmi_wait_for_message_response(9)
• scmi_xfer_raw_wait_for_message_response(9)
• do_xfer(9)
• do_xfer_with_response(9)
• xfer_get_init(9)
• version_get(9)
• scmi_set_protocol_priv(9)
• scmi_get_protocol_priv(9)
• scmi_common_extended_name_get(9)
• scmi_common_get_max_msg_size(9)
• struct scmi_iterator(9)
• scmi_revision_area_get(9)
• scmi_protocol_version_negotiate(9)
• scmi_protocol_version_initialize(9)
• scmi_alloc_init_protocol_instance(9)
• scmi_get_protocol_instance(9)
• scmi_protocol_acquire(9)
• scmi_protocol_release(9)
• scmi_devm_protocol_get(9)
• scmi_devm_protocol_acquire(9)
• scmi_devm_protocol_put(9)
• scmi_is_transport_atomic(9)
• scmi_handle_get(9)
• scmi_handle_put(9)
• scmi_channels_setup(9)

xoxo 😘 this page lives under ./drivers/firmware/arm_scmi, stamped October 2026, and it's serving scmi_protocol_msg_check(9) energy. 💖🦋✨