cros_ec_query_all(9)

💅 cros_ec_query_all(9) 💅

okay so bestie, this one is from the Kernel API Manual, and it’s giving “ask the ChromeOS EC what protocol version it supports” energy. Let’s get into it. 🦋

🌸 NAME 🌸

cros_ec_query_all — Query the protocol version supported by the ChromeOS EC.

✨ SYNOPSIS ✨

int cros_ec_query_all (struct cros_ec_device *ec_dev );

🎀 ARGUMENTS 🎀

• ec_dev — Device to register.

🦋 RETURN 🦋

0 on success or negative error code. No cap, that’s the whole vibe check. 💖

💖 SEE ALSO 💖

Kernel file ./drivers/platform/chrome/cros_ec_proto.c

Also peep these cross-references, bestie:

• 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_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_get_cmd_versions(9)
• cros_ec_device_registered(9)

Signed off with source/version sparkle: ./drivers/platform/chrome · October 2026 · still serving cros_ec_query_all(9) realness, periodt. Bye bestie, slay your kernel adventures! 🫶✨