rio_sport_is_active(9)

💖 rio_sport_is_active 💖

okay so bestie, welcome to the Kernel API Manual corner of the group chat ✨ this one is all about rio_sport_is_active, and it's lowkey giving “is this switch port even alive?” energy 💅

✨ NAME ✨

rio_sport_is_active — literally tests if a switch port has an active connection. periodt 🎀

🌸 SYNOPSIS 🌸

int rio_sport_is_active (struct rio_dev *rdev , int sp );

🎀 ARGUMENTS 🎀

• rdev — RapidIO device object, your main character device struct 🫶
• sp — switch port number, the exact port we're checking on 🦋

💅 DESCRIPTION 💅

okay so the tea ☕: this reads the port error status CSR for a particular switch port to determine if the port has an active link. Then it returns RIO_PORT_N_ERR_STS_PORT_OK if the port is active, or 0 if it is inactive. That's the whole vibe check, no cap 💖

🔥 SEE ALSO 🔥

Kernel file ./drivers/rapidio/rio-scan.c — plus the whole RapidIO friend group, all listed here so nobody gets left on read:

• rio_destid_alloc(9)
• rio_destid_reserve(9)
• rio_destid_free(9)
• rio_destid_first(9)
• rio_destid_next(9)
• rio_get_device_id(9)
• rio_set_device_id(9)
• rio_clear_locks(9)
• rio_enum_host(9)
• rio_device_has_destid(9)
• rio_release_dev(9)
• rio_is_switch(9)
• rio_setup_device(9)
• rio_get_host_deviceid_lock(9)
• rio_enum_peer(9)
• rio_enum_complete(9)
• rio_disc_peer(9)
• rio_mport_is_active(9)
• rio_update_route_tables(9)
• rio_init_em(9)
• rio_enum_mport(9)
• rio_build_route_tables(9)
• rio_disc_mport(9)
• rio_basic_attach(9)

mwah 💋 source/version is ./drivers/rapidio, date is October 2026, and yes bestie this was rio_sport_is_active(9) — byeee 🦋