nvec_msg_alloc(9)

nvec_msg_alloc(9) 🎀✨

okay so bestie, this is from the Kernel API Manual — it’s nvec_msg_alloc(9), and we’re gonna get into it. No cap, it’s giving “small but important kernel helper” energy 💅.

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✨ NAME ✨

nvec_msg_alloc — the original page leaves the description blank after the dash, so no invented backstory here, bestie 🙈. Mysterious. Iconic.

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✨ SYNOPSIS ✨

struct nvec_msg * nvec_msg_alloc (struct nvec_chip *nvec , enum
       nvec_msg_category category );

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✨ ARGUMENTS ✨

• nvec — A struct nvec_chip. That’s the whole description, bestie 🫶.
• category — Pool category, see enum nvec_msg_category. It’s giving “check the enum for the actual deets” 🔥.

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✨ DESCRIPTION ✨

Allocate a single struct nvec_msg object from the message pool of nvec. That’s the assignment, fr fr. The result shall be passed to nvec_msg_free if no longer used — don’t leave your allocated bestie hanging 😭.

Outgoing messages are placed in the upper 75% of the pool, keeping the lower 25% available for RX buffers only. Why? To prevent a situation where all buffers are full and a message is thus endlessly retried because the response could never be processed. It’s literally buffer-management self-care 🌸✨.

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✨ SEE ALSO ✨

• Kernel file: ./drivers/staging/nvec/nvec.c
• enum nvec_msg_category(9)
• nvec_register_notifier(9)
• nvec_unregister_notifier(9)
• nvec_msg_free(9)
• nvec_msg_is_event(9)
• nvec_msg_size(9)
• nvec_gpio_set_value(9)
• nvec_write_async(9)
• nvec_write_sync(9)
• nvec_toggle_global_events(9)
• nvec_event_mask(9)
• nvec_request_master(9)
• parse_msg(9)
• nvec_dispatch(9)
• nvec_tx_completed(9)
• nvec_rx_completed(9)
• nvec_invalid_flags(9)
• nvec_tx_set(9)
• tegra_i2c_writel(9)
• nvec_interrupt(9)

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signing off from ./drivers/staging/nvec, dated October 2026, and yes bestie this is still nvec_msg_alloc(9) 💖🦋🍓. periodt.