STRUCT SSAM_SPAN(9)

🦋 struct ssam_span(9) — Kernel API Manual 🦋

okay so bestie, welcome to the Kernel API Manual page for struct ssam_span(9). we are talking about a reference to a buffer region, and it is giving “I know a guy who owns the actual buffer” energy. let’s get into it 💅

✨ NAME ✨

struct ssam_span — reference to a buffer region. that’s the name, that’s the vibe, no cap 💖

🌸 SYNOPSIS 🌸

the whole struct is literally this, character for character:

       struct ssam_span {
           u8 *ptr;
           size_t len;
        };

not me being obsessed with a two-field struct, but here we are 🎀

🎀 Members 🎀

• ptr — pointer to the buffer region. it’s the “where” of the situation 👀
• len — length of the buffer region. it’s the “how much” of the situation 📏

💖 Description 💖

A struct ssam_span is a reference to a (non-owned) buffer segment, consisting of pointer and length. that’s the whole plot, bestie.

Use of this struct indicates non-owned data, i.e. data of which the life-time is managed (i.e. it is allocated/freed) via another pointer. so like, this struct is not the owner; it’s just the reference, and the lifetime is somebody else’s responsibility. no cap. 🫶

🔥 SEE ALSO 🔥

okay so if you want the whole cinematic universe, here’s the related-entities friend group 💅

Kernel file: ./include/linux/surface_aggregator/serial_hub.h

• enum ssh_frame_type(9)
• struct ssh_frame(9)
• enum ssh_payload_type(9)
• struct ssh_command(9)
• SSH_MESSAGE_LENGTH(9)
• SSH_COMMAND_MESSAGE_LENGTH(9)
• SSH_MSGOFFSET_FRAME(9)
• SSH_MSGOFFSET_COMMAND(9)
• ssh_crc(9)
• ssh_rqid_next_valid(9)
• ssh_rqid_to_event(9)
• ssh_rqid_is_event(9)
• ssh_tc_to_rqid(9)
• ssh_tid_to_index(9)
• ssh_tid_is_valid(9)
• enum ssam_ssh_tid(9)
• enum ssh_packet_base_priority(9)
• SSH_PACKET_PRIORITY(9)
• ssh_packet_priority_get_try(9)
• ssh_packet_priority_get_base(9)
• struct ssh_packet_ops(9)
• struct ssh_packet(9)
• ssh_packet_set_data(9)
• struct ssh_request_ops(9)
• struct ssh_request(9)
• to_ssh_request(9)
• ssh_request_get(9)
• ssh_request_put(9)
• ssh_request_set_data(9)

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that’s the whole page, bestie 💖 sign-off time: source/version ./include/linux/surface_aggreg..., date October 2026, and the page is struct ssam_span(9). mwah 💋✨