xemaclite_send_data(9)

💌 xemaclite_send_data — the kernel API manual page, bestie edition

okay so picture this: it's a Kernel API Manual page, the star of the show is xemaclite_send_data(9), and I'm about to explain it to you like we're texting at 2am. let's go 💅

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✨ NAME ✨

xemaclite_send_data — literally just Send an Ethernet frame. that's the whole gig. icon behavior, no notes 🎀

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🌸 SYNOPSIS 🌸

int xemaclite_send_data (struct net_local *drvdata , u8 *data , unsigned
int byte_count );

she takes three things and hands you back an int. simple queen 👑

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🦋 ARGUMENTS 🦋

• drvdata — Pointer to the Emaclite device private data. this is her little bag of personal info, ok? the device's own private data, pointed at.
• data — Pointer to the data to be sent. the actual payload bestie, this is the moment.
• byte_count — Total frame size, including header. total total. header included, don't forget the header or it's gonna be a whole thing 😭

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💖 DESCRIPTION 💖

so what she does is: this function checks if the Tx buffer of the Emaclite device is free to send data. vibe check on the Tx buffer first, always 🫶

If so, it fills the Tx buffer with data for transmission.

Otherwise, it returns an error. that's it. that's the function. she either slays or she says no 💀

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⭐ RETURN ⭐

• 0 upon success 🎉
• -1 if the buffer(s) are full 💔

literally two possibilities. 0 or -1. no in between, no "it depends", no main character ambiguity ✨

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🍓 NOTE 🍓

The maximum Tx packet size can not be more than Ethernet header (14 Bytes) + Maximum MTU (1500 bytes). and that's excluding FCS. so do with that math what you will, but the math is mathing 🔥

like… 14 + 1500, and the FCS does not count toward it. noted. remembered. tattooed on my brain 🧚

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🌈 SEE ALSO 🌈

the whole friend group, and I do mean the whole friend group — no one gets left out:

• Kernel file ./drivers/net/ethernet/xilinx/xilinx_emaclite.c
• struct net_local(9)
• xemaclite_enable_interrupts(9)
• xemaclite_disable_interrupts(9)
• xemaclite_aligned_write(9)
• xemaclite_aligned_read(9)
• xemaclite_recv_data(9)
• xemaclite_update_address(9)
• xemaclite_set_mac_address(9)
• xemaclite_tx_timeout(9)
• xemaclite_tx_handler(9)
• xemaclite_rx_handler(9)
• xemaclite_interrupt(9)
• xemaclite_mdio_wait(9)
• xemaclite_mdio_read(9)
• xemaclite_mdio_write(9)
• xemaclite_mdio_setup(9)
• xemaclite_adjust_link(9)
• xemaclite_open(9)
• xemaclite_close(9)
• xemaclite_send(9)
• get_bool(9)
• xemaclite_ethtools_get_drvinfo(9)
• xemaclite_of_probe(9)
• xemaclite_of_remove(9)

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and that's the page!! 💜 sign-off time: this came from ./drivers/net/ethernet/xilinx, dated October 2026, and it's filed under xemaclite_send_data(9) — ok bye, go send some frames responsibly, ily 🫶✨