es58x_can_g...skb_recovery(9)

🌸 NAME 🌸

okay so this is the Kernel API Manual page for es58x_can_g...skb_recovery(9) — yes, the title is literally truncated with ..., and we are respecting the drama 💅.

The function is es58x_can_get_echo_skb_recovery — Try to re-sync the echo FIFO. ✨

✨ SYNOPSIS ✨

int es58x_can_get_echo_skb_recovery (struct net_device *netdev , u32
       rcv_packet_idx );

🎀 ARGUMENTS 🎀

• netdev — CAN network device. that's the main-character struct, no cap 🫶
• rcv_packet_idx — Index. literally just “Index”; the manpage is serving minimalist icon behavior 😭

🦋 DESCRIPTION 🦋

⚠️ bestie, this function should not be called under normal circumstances. full stop. periodt. 💀

okay so the vibe is: in the unlikely case that one or several URB packages get dropped by the device, the index will get out of sync 😭. The recovery move is to try to recover by dropping the echo skb packets with older indexes.

That's it — no extra lore, no invented side quests. 🧚

💅 RETURN 💅

• zero if recovery was successful 🫶
• -EINVAL otherwise 💀

👑 SEE ALSO 👑

check these out, iykyk:

• Kernel file: ./drivers/net/can/usb/etas_es58x/es58x_core.c
• es58x_calculate_crc(9), es58x_get_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(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)

mwah 💋 — source/version: ./drivers/net/can/usb/etas_es58x, date: October 2026. periodt. 🌈