hvc_iucv_notifier_del(9)

🎀 NAME 🎀

hvc_iucv_notifier_del — HVC notifier for closing a TTY for the last time. Fr fr, that’s the whole vibe: it’s the notifier that handles the final TTY close. 💅

✨ SYNOPSIS ✨

void hvc_iucv_notifier_del (struct hvc_struct *hp , int id );

🫶 ARGUMENTS 🫶

• hp — pointer to the HVC device (struct hvc_struct). That’s the main-character device pointer, bestie. 🎀
• id — additional data (originally passed to hvc_alloc): the index of an struct hvc_iucv_private instance. Yes, that specific index. 🎯

💖 DESCRIPTION 💖

Okay so this routine notifies the HVC back-end that the last tty device fd has been closed. It also cleans up tty resources, because we are not leaving that mess for someone else. ✨

The clean-up of the IUCV connection is done in hvc_iucv_dtr_rts and depends on the HUPCL termios control setting. That’s the whole “different function, different job” situation, no cap. 💅

Locking: struct hvc_iucv_private->lock — keep that lock in mind, bestie. 🔒

🌈 SEE ALSO 🌈

Kernel file ./drivers/tty/hvc/hvc_iucv.c is the spot, and here’s the full friend group — every single reference, no skips: 😤

• hvc_iucv_get_private(9)
• alloc_tty_buffer(9)
• destroy_tty_buffer(9)
• destroy_tty_buffer_list(9)
• hvc_iucv_write(9)
• hvc_iucv_get_chars(9)
• hvc_iucv_queue(9)
• hvc_iucv_send(9)
• hvc_iucv_sndbuf_work(9)
• hvc_iucv_put_chars(9)
• hvc_iucv_notifier_add(9)
• hvc_iucv_cleanup(9)
• tty_outqueue_empty(9)
• flush_sndbuf_sync(9)
• hvc_iucv_hangup(9)
• hvc_iucv_notifier_hangup(9)
• hvc_iucv_dtr_rts(9)
• hvc_iucv_filter_connreq(9)
• hvc_iucv_path_pending(9)
• hvc_iucv_path_severed(9)
• hvc_iucv_msg_pending(9)
• hvc_iucv_msg_complete(9)
• hvc_iucv_alloc(9)
• hvc_iucv_destroy(9)
• hvc_iucv_parse_filter(9)
• hvc_iucv_setup_filter(9)
• param_set_vmidfilter(9)
• param_get_vmidfilter(9)
• hvc_iucv_init(9)
• hvc_iucv_config(9)

k bye bestie — source/version: ./drivers/tty/hvc, dated October 2026 🫶🎀💋