STRUCT SCMI_TRANSPORT_SUPPLIER(9)

🌸 NAME 🌸

okay so bestie, welcome to the Kernel API Manual page for struct scmi_...ort_supplier(9) — yes, that truncated-looking cutie is the title 💅. The main character here is struct scmi_transport_supplier, and its whole vibe is Transport descriptor 🎀.

✨ SYNOPSIS ✨

       struct scmi_transport_supplier {
           struct mutex mtx;
           struct device *available;
           const struct scmi_transport_handle th;
        };

👑 Members 👑

• mtx — a struct mutex that protects available, no cap. Literally “A mutex to protect available” energy 🔒.
• available — a reference to an initialized transport device, when available. This reference is implicitly used to track the status of the supplier, and it can cycle through the following 3 states: 💫
  1. NOT_READY - PTR_ERR(-EPROBE_DEFER): no supplier available; this is the transport initial state.
  2. AVAILABLE - <supplier_dev>: a transport supplier has been initialized and it is available, ready to use.
  3. BUSY _ PTR_ERR(-EBUSY): transport supplier is currently in use.
• th — an embedded transport handle object that embeds the helpers implementing the above mentioned logic 🧚.

💖 Description 💖

🚨 Note that this transport driver enforces single instance probing — periodt.

🌈 SEE ALSO 🌈

Kernel file ./drivers/firmware/arm_scmi/common.h, plus these iconic little references:

• pack_scmi_header(9)
• unpack_scmi_header(9)
• struct scmi_chan_info(9)
• struct scmi_transport_ops(9)
• struct scmi_desc(9)
• struct scmi_debug_info(9)
• struct scmi_shmem_io_ops(9)
• struct scmi_shared_mem_operations(9)
• struct scmi_message_operations(9)
• struct scmi_transport_core_operations(9)
• struct scmi_transport_handle(9)
• struct scmi_transport(9)
• scmi_transport_supplier_put(9)
• scmi_transport_supplier_get(9)

and that’s the whole page, bestie 💖 source: ./drivers/firmware/arm_scmi; page/version: struct scmi_...ort_supplier(9); date: October 2026 🎀✨