rio_is_switch(9)

🎀 NAME 🎀

hii bestie 💖 welcome to the rio_is_switch(9) page from the Kernel API Manual. It’s literally about testing if a RIO device has switch capabilities — cute, focused, no cap ✨.

✨ SYNOPSIS ✨

int rio_is_switch (struct rio_dev *rdev );

💅 ARGUMENTS 💅

• rdev — the RIO device, aka the thing you’re checking. It’s a struct rio_dev *, periodt 💅.

🦋 DESCRIPTION 🦋

okay so here’s the vibe: rio_is_switch() gets the RIO device Processing Element Features register contents and tests for switch capabilities. Slay 🌸. It returns 1 if the device is a switch or 0 if it is not a switch. Not me being clear for once 😭.

Heads up bestie: the RIO device struct is freed. That’s in the original, so don’t skip it 💀.

🌈 SEE ALSO 🌈

Kernel file ./drivers/rapidio/rio-scan.c — and the whole iconic friend group 👑

• 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_setup_device(9)
• rio_sport_is_active(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)

bye bestie 🫶 — this page’s source/version is ./drivers/rapidio, dated October 2026, and it’s the rio_is_switch(9) manual page. mwah 💋