es58x_set_crc(9)

💅 es58x_set_crc(9) — like, the Kernel API Manual page, bestie 🎀

okay so welcome to the glow-up of es58x_set_crc, straight out of the Kernel API Manual ✨ this one is short and sweet but it matters, so pay attention 🫶

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✨ NAME ✨

es58x_set_crc — sets the CRC value of a given URB. that's it. that's the whole vibe. 💅

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🌸 SYNOPSIS 🌸

void es58x_set_crc (union es58x_urb_cmd *urb_cmd , u16 urb_len );

like, you hand it a URB command and a length, and it goes and does the CRC thing. no return value, she just does it 👑

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🦋 ARGUMENTS 🦋

• urb_cmd — the URB command that we want to get the CRC for 💖 hand over the union es58x_urb_cmd * and she's ready.
• urb_len — the length of urb_cmd. and ngl, this one has a rule: it must be at least bigger than 4 (ES58X_CRC_CALC_OFFSET + sizeof(crc)). like, do not come in here with a tiny length, bestie 😭 the math has to math.

⚠️ fr fr though — urb_len being at least bigger than 4 is a requirement, not a suggestion. respect the offset + crc size or don't come to the function at all 🙈

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🌈 SEE ALSO 🌈

bestie she has SO many friends, this is a whole group chat 💬 the kernel file lives at ./drivers/net/can/usb/etas_es58x/es58x_core.c and here's the entire squad, no cap:

• es58x_calculate_crc(9), es58x_get_crc(9), es58x_check_crc(9)
• es58x_timestamp_to_ns(9), es58x_set_skb_timestamp(9), es58x_rx_timestamp(9), es58x_set_realtime_diff_ns(9)
• es58x_is_can_state_active(9), es58x_is_echo_skb_threshold_reached(9)
• es58x_can_free_echo_skb_tail(9), es58x_can_get_echo_skb_recovery(9), es58x_can_get_echo_skb(9), es58x_can_reset_echo_fifo(9)
• es58x_flush_pending_tx_msg(9), es58x_tx_ack_msg(9), es58x_rx_can_msg(9), es58x_rx_err_msg(9)
• es58x_cmd_ret_desc(9), es58x_rx_cmd_ret_u8(9), es58x_rx_cmd_ret_u32(9), es58x_increment_rx_errors(9)
• es58x_handle_urb_cmd(9), es58x_check_rx_urb(9), es58x_copy_to_cmd_buf(9)
• es58x_split_urb_try_recovery(9), es58x_handle_incomplete_cmd(9), es58x_split_urb(9)
• es58x_read_bulk_callback(9), es58x_write_bulk_callback(9)
• es58x_alloc_urb(9), es58x_get_tx_urb(9), es58x_submit_urb(9), es58x_send_msg(9), es58x_alloc_rx_urbs(9), es58x_free_urbs(9)
• es58x_open(9), es58x_stop(9)
• es58x_xmit_commit(9), es58x_xmit_more(9), es58x_start_xmit(9)
• es58x_set_mode(9)
• es58x_init_priv(9), es58x_init_netdev(9), es58x_free_netdevs(9), es58x_init_es58x_dev(9)
• es58x_probe(9), es58x_disconnect(9)

like?? the range?? iconic behavior honestly 👑

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and that's the whole page bestie, go set some CRCs responsibly 🍓

🌟 this masterpiece lives in ./drivers/net/can/usb/etas_es58x, dated October 2026, and yes it's giving main character energy — mwah 💋 💜