es58x_copy_to_cmd_buf(9)

💅 NAME 💅

es58x_copy_to_cmd_buf — copy an array to the URB command buffer. This is the es58x_copy_to_cmd_buf(9) page from the Kernel API Manual, and bestie, it's giving tiny helper with main-character URB energy. ✨

🎀 SYNOPSIS 🎀

int es58x_copy_to_cmd_buf (struct es58x_device *es58x_dev , u8 *raw_cmd
, int raw_cmd_len );

🌸 ARGUMENTS 🌸

• es58x_dev — ES58X device. That's the device in question, periodt.
• raw_cmd — the buffer we want to copy. Yes, this exact buffer.
• raw_cmd_len — length of raw_cmd. The byte count of the copy agenda.

🦋 DESCRIPTION 🦋

Okay so here's the tea, bestie: this function concatenates raw_cmd_len bytes of raw_cmd to the end of the URB command buffer. That's the whole move. No secret side quest, no extra lore. 💖

⭐ RETURN ⭐

• zero on success.
• -EMSGSIZE if not enough space is available to do the copy.

Like, if the URB command buffer is booked and busy, you get -EMSGSIZE. Respect the space limits, bestie. 💀

👑 SEE ALSO 👑

The full icon roll call, no skips:

• 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_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_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)

And that's the page, bestie! 🌈 Source/version vibe: ./drivers/net/can/usb/etas_es58x, dated October 2026 — Kernel API Manual edition, stay slaying. 💖🎀🦋