hvc_iucv_msg_pending(9)

✨ hvc_iucv_msg_pending(9) ✨

okay bestie, welcome to the Kernel API Manual 💖 — this one's a lil kernel function page and it's honestly so specific and I'm obsessed. let's get into it 🫶

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🌸 NAME 🌸

hvc_iucv_msg_pending — the IUCV handler that deals with an incoming IUCV message. it's giving "front desk receptionist for messages" energy ngl 💅

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🦋 SYNOPSIS 🦋

void hvc_iucv_msg_pending (struct iucv_path *path , struct iucv_message
*msg );

so yeah, it returns void (no return value, she just does her thing ✨) and takes two args. slay.

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🎀 ARGUMENTS 🎀

• path — the pending path, and it's a struct iucv_path. literally the path in question 💫
• msg — a pointer to the IUCV message. the message in question 📨

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⭐ DESCRIPTION ⭐

so what does she do? the function takes an incoming message and puts it on the input queue so it can be processed later — by hvc_iucv_get_chars / hvc_iucv_write, iykyk 👑

BUT — and this is the important part, bestie — if the tty has not yet been opened, the message gets rejected. no tty open? no message for you 🙈 periodt.

Locking: struct hvc_iucv_private->lock 🔒 (that's the lock involved, keep that in mind fr fr)

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💜 SEE ALSO 💜

• Kernel file ./drivers/tty/hvc/hvc_iucv.c — the whole friend group lives here 🧚
• 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_notifier_del(9)
• hvc_iucv_filter_connreq(9)
• hvc_iucv_path_pending(9)
• hvc_iucv_path_severed(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)

like, that's the whole squad, all 30-ish of them, no cap 🌈

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💀 friendly reminder: if the tty isn't open yet, the message is rejected. don't come for her, she's just following the rules.

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k that's the page!! this one came from ./drivers/tty/hvc and it's dated October 2026 — mwah, bye bestie 💋🎀🦋