cros_ec_get_cmd_versions(9)

✨ cros_ec_get_cmd_versions — the Kernel API Manual glow-up ✨

okay so bestie, this page lives in the Kernel API Manual and it's literally all about cros_ec_get_cmd_versions 🦋 — the lil' function that tells you which versions of an EC command are supported. Get supported version mask, that's the whole vibe. Periodt.

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🌸 SYNOPSIS 🌸

Like, here's the whole signature, character for character, no cap:

int cros_ec_get_cmd_versions (struct cros_ec_device *ec_dev , u16 cmd );

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🎀 ARGUMENTS 🎀

Two of them, both iconic, both essential:

• ec_dev — the EC device 👑 this is your main character right here.
• cmd — the command you wanna test 💅 the one you're putting on blast.

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⭐ RETURN ⭐

So what do you get back?

• On success → the version mask ✨ (slay)
• On failure → a negative error number 😭 (not the vibe, but at least it's honest)

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🫶 SEE ALSO 🫶

The whole friend group, fr fr — they all hang out in the kernel file ./drivers/platform/chrome/cros_ec_proto.c:

• cros_ec_prepare_tx(9)
• cros_ec_check_result(9)
• cros_ec_get_host_event_wake_mask(9)
• cros_ec_get_host_command_version_mask(9)
• cros_ec_query_all(9)
• cros_ec_cmd_xfer(9)
• cros_ec_cmd_xfer_status(9)
• cros_ec_get_next_event(9)
• cros_ec_get_host_event(9)
• cros_ec_read_features(9)
• cros_ec_check_features(9)
• cros_ec_get_sensor_count(9)
• cros_ec_cmd(9)
• cros_ec_cmd_readmem(9)
• cros_ec_device_registered(9)

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lowkey go read them all, they're all in ./drivers/platform/chrome and they're all eating 💀🔥

and that's the page!! mwah 💖 this whole thing came from ./drivers/platform/chrome, dated October 2026 — catch you in the next manpage bestie, muah 🎀✨🧚💜