ap_select_domain(9)

🌸 NAME 🌸

okay so bestie, meet ap_select_domain(9) from the Kernel API Manual. Its whole thing is to select an AP domain if possible, and only when we haven’t already done so before. That’s the assignment. Periodt. ✨

✨ SYNOPSIS ✨

the signature is literally this and nothing else, no cap:

void ap_select_domain (void );

🎀 ARGUMENTS 🎀

• void — no arguments. Not one. Zero. A clean slate, bestie 💅

🦋 SEE ALSO 🦋

the kernel file is ./drivers/s390/crypto/ap_bus.c, and these are the cross-refs you’re gonna want in your group chat:

• ap_airq_ptr(9)
• ap_interrupts_available(9)
• ap_qci_available(9)
• ap_apft_available(9)
• ap_init_qci_info(9)
• ap_request_timeout(9)
• ap_poll_timeout(9)
• ap_interrupt_handler(9)
• ap_tasklet_fn(9)
• ap_poll_thread(9)
• ap_bus_match(9)
• ap_uevent(9)
• ap_owned_by_def_drv(9)
• ap_apqn_in_matrix_owned_by_def_drv(9)
• ap_get_configuration(9)
• ap_scan_bus(9)
• ap_module_init(9)

later bestie — this cutie is from ./drivers/s390/crypto, dated October 2026, and it’s ap_select_domain(9) signing off 💖✨