hsi_alloc_controller(9)

hsi_alloc_controller(9) 💅✨

🎀 NAME 🎀

From the Kernel API Manual, bestie: hsi_alloc_controller - Allocate an HSI controller and its ports 💖

🌸 SYNOPSIS 🌸

struct hsi_controller * hsi_alloc_controller (unsigned int n_ports ,
gfp_t flags );

🦋 ARGUMENTS 🦋

• n_ports — Number of ports on the HSI controller. Like, how many ports are we giving this controller? 🔥
• flags — Kernel allocation flags. The allocation flags, but make it kernel ✨

💜 DESCRIPTION 💜

Return NULL on failure or a pointer to an hsi_controller on success. So if it flops, you get NULL; if it slays, you get the pointer. No cap 💅

🌈 SEE ALSO 🌈

Okay so the whole friend group is here, plus the kernel file:

• Kernel file ./drivers/hsi/hsi_core.c
• hsi_port_unregister_clients(9)
• hsi_unregister_controller(9)
• hsi_register_controller(9)
• hsi_register_client_driver(9)
• hsi_put_controller(9)
• hsi_free_msg(9)
• hsi_alloc_msg(9)
• hsi_async(9)
• hsi_claim_port(9)
• hsi_release_port(9)
• hsi_register_port_event(9)
• hsi_unregister_port_event(9)
• hsi_event(9)
• hsi_get_channel_id_by_name(9)

xoxo, source ./drivers/hsi · dated October 2026 · page hsi_alloc_controller(9) 🎀