ctucan_rx_poll(9)

💖 ctucan_rx_poll(9) — Kernel API Manual 💖

🌸 NAME 🌸

ctucan_rx_poll — poll routine for rx packets (NAPI). Okay so this is the function that handles the rx polling moment, and it is lowkey iconic, bestie.

✨ SYNOPSIS ✨

int ctucan_rx_poll (struct napi_struct *napi , int quota );

🎀 ARGUMENTS 🎀

• napi — NAPI structure pointer. That’s the NAPI struct pointer, right there.
• quota — max number of rx packets to be processed. Think of it as the packet budget for this poll, fr fr.

🦋 DESCRIPTION 🦋

This is the poll routine for the rx part, periodt. It will process packets up to the maximum quota value — the source literally says “maximux”, and I’m not fixing that, but the meaning is max quota. No cap, that’s the whole job.

💜 RETURN 💜

Number of packets received. That’s it — it returns how many packets came through, slay.

👑 SEE ALSO 👑

The kernel file is literally ./drivers/net/can/ctucanfd/ctucanfd_base.c — go look, bestie. And then there’s the whole iconic crew:

• ctucan_state_to_str(9)
• ctucan_reset(9)
• ctucan_set_btr(9)
• ctucan_set_bittiming(9)
• ctucan_set_data_bittiming(9)
• ctucan_set_secondary_sample_point(9)
• ctucan_set_mode(9)
• ctucan_chip_start(9)
• ctucan_do_set_mode(9)
• ctucan_get_tx_status(9)
• ctucan_is_txt_buf_writable(9)
• ctucan_insert_frame(9)
• ctucan_give_txtb_cmd(9)
• ctucan_start_xmit(9)
• ctucan_read_rx_frame(9)
• ctucan_rx(9)
• ctucan_read_fault_state(9)
• ctucan_get_rec_tec(9)
• ctucan_err_interrupt(9)
• ctucan_rotate_txb_prio(9)
• ctucan_tx_interrupt(9)
• ctucan_interrupt(9)
• ctucan_chip_stop(9)
• ctucan_open(9)
• ctucan_close(9)
• ctucan_get_berr_counter(9)

🌸 that’s the tea, bestie: source/version ./drivers/net/can/ctucanfd, date October 2026, page ctucan_rx_poll(9) — signing off with maximum sparkle 💅🫶✨