STRUCT ALPS_MODEL_INFO(9)

💅 struct alps_model_info(9) 💅

okay so this is a page from the Kernel API Manual, and it's literally about the ALPS touchpad ID table. bestie, it's giving "who dis" but for hardware 🎀

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✨ NAME ✨

struct alps_model_info — the touchpad ID table, aka the guest list for ALPS pads 🫶

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🌸 SYNOPSIS 🌸

struct alps_model_info {
    u8 signature[3];
    struct alps_protocol_info protocol_info;
 };

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🦋 Members 🦋

• signature — the E7 response string to match. three bytes of "yep that's me" energy ✨
• protocol_info — all the deets about the protocol the device uses 💅

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👑 Description 👑

so here's the tea: many (but not all — read that again, not all) ALPS touchpads can be ID'd by looking at the values that come back in the "E7 report" and/or the "EC report." this table is the whole roster of those touchpads, ngl 🔥

like, it's literally a list of touchpads that can be recognised this way. no cap, that's the entire vibe of this struct.

⭐ lowkey important: "many (but not all)" — the manpage is being very clear that this table won't catch every single ALPS pad out there, so don't come for it when one slips through 🙈

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🌈 SEE ALSO 🌈

• Kernel file ./drivers/input/mouse/alps.h — struct alps_protocol_info(9), struct alps_nibble_commands(9), struct alps_fields(9), struct alps_data(9)

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and that's the whole page, bestie 💖 this icon comes from ./drivers/input/mouse, dated October 2026, and it goes out as struct alps_model_info(9). periodt. 🧚💜