xcan_write_frame(9)

💅 xcan_write_frame(9)

okay so bestie, welcome to the Kernel API Manual ✨ — this one's about xcan_write_frame, and it's genuinely a little one-function wonder. no cap.

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🌸 NAME 🌸

xcan_write_frame — the function that literally writes a frame to the hardware 🫶 that's it, that's the whole job, and she does it well.

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✨ SYNOPSIS ✨

void xcan_write_frame (struct net_device *ndev , struct sk_buff *skb ,
int frame_offset );

so you call her, she takes three things, she writes a frame. iconic behaviour honestly 💅

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🎀 ARGUMENTS 🎀

• ndev — a pointer to a net_device structure 🦋 like, the network device you're doing all this for. your main character device, if you will.
• skb — an sk_buff pointer that contains the data to be Txed 💖 so like… the actual payload that's about to leave the building. bye bestie, go be transmitted ✈️
• frame_offset — the register offset to write the frame to ⭐ this is the "where" of it all — pick your address, she'll put the frame there. no guessing, you gotta tell her fr fr.

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👑 SEE ALSO 👑

the whole friend group 💜 — go say hi to the rest of the xilinx_can.c girlies:

• Kernel file ./drivers/net/can/xilinx_can.c struct xcan_priv(9)
• xcan_write_reg_le(9), xcan_read_reg_le(9), xcan_write_reg_be(9), xcan_read_reg_be(9)
• xcan_rx_int_mask(9), set_reset_mode(9), xcan_set_bittiming(9), xcan_chip_start(9)
• xcan_do_set_mode(9), xcan_start_xmit_fifo(9), xcan_start_xmit_mailbox(9), xcan_start_xmit(9)
• xcan_rx(9), xcanfd_rx(9)
• xcan_current_error_state(9), xcan_set_error_state(9), xcan_update_error_state_after_rxtx(9)
• xcan_err_interrupt(9), xcan_state_interrupt(9), xcan_rx_fifo_get_next_frame(9)
• xcan_rx_poll(9), xcan_tx_interrupt(9), xcan_interrupt(9)
• xcan_chip_stop(9), xcan_open(9), xcan_close(9)
• xcan_get_berr_counter(9), xcan_get_auto_tdcv(9)
• xcan_suspend(9), xcan_resume(9), xcan_runtime_suspend(9), xcan_runtime_resume(9)
• xcan_probe(9), xcan_remove(9)

like… that's the whole roster 🔥 iykyk.

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ok and one lil vibe-check note: xcan_write_frame returns void — she doesn't report back, she just does the thing and dips 😭 no exit status, no return value, nothing. so don't be out here checking a return that does not exist, bestie 🙈

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and that's the page!! 💖✨🎀 it lives in ./drivers/net/can, and this lil gem is dated October 2026 — so like, mark your calendar, girlies 🌈. slay, bye! 💅🦋🌸