es58x_get_crc(9)

💖 es58x_get_crc(9) 💖

okay so bestie, welcome to the Kernel API Manual ✨ — yes that's the manual name, and yes it's giving serious main-character kernel energy. Today's episode: es58x_get_crc — the little function that goes and fetches the CRC value of a given URB. 🎀

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✨ SYNOPSIS ✨

u16 es58x_get_crc (const union es58x_urb_cmd *urb_cmd , u16 urb_len );

that's it. that's the whole vibe check. 🦋

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🌸 ARGUMENTS 🌸

• urb_cmd — the URB command for which we want to get the CRC. like, hand her the command and she'll hand you back the checksum, no questions asked 💅
• urb_len — length of urb_cmd. and listen: it must be at least bigger than 4 (ES58X_CRC_CALC_OFFSET + sizeof(crc)). that's not a suggestion bestie, that's the whole rule 🙈 iykyk

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⭐ RETURN ⭐

a crc16 value. that's the whole thing. slay. 👑

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🌈 SEE ALSO 🌈

the kernel file lives at ./drivers/net/can/usb/etas_es58x/es58x_core.c — go read it, she's iconic fr fr 🫶

and now, the extended friend group 💜 (every single one of them, no skips, no cap):

• es58x_calculate_crc(9)
• es58x_set_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)

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💀 reminder bestie: urb_len has to be at least bigger than 4 (ES58X_CRC_CALC_OFFSET + sizeof(crc)). don't come crying to me if you ignore it 🙈

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okay that's the page!! mwah 💋 source is ./drivers/net/can/usb/etas_es58x, dated October 2026, and the whole thing answers to the name es58x_get_crc(9) — periodt. 🌸✨🎀💅