ev_byte_channel_poll(9)

💅 ev_byte_channel_poll(9) 💅

okay so this is a page from the Kernel API Manual, section 9 — yes bestie, the kernel one, we're in the big leagues now 🔥 the star of the show is ev_byte_channel_poll, and she is literally just here to tell you what's up with the byte channel buffers ✨

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🌸 NAME 🌸

ev_byte_channel_poll — returns the status of the byte channel buffers, periodt 💅

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🎀 SYNOPSIS 🎀

unsigned int ev_byte_channel_poll (unsigned int handle , unsigned int
*rx_count , unsigned int *tx_count );

no cap, that's the whole signature — three args, one unsigned int coming back at you 🫶

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🦋 ARGUMENTS 🦋

• handle — the byte channel handle. your lil ID for the channel in question 🎫
• rx_count — returned count of bytes in receive queue 📥 (yes, returned — she writes into this pointer, she doesn't read it)
• tx_count — returned count of free space in transmit queue 📤 (also written, also a pointer, keep up bestie 💖)

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✨ DESCRIPTION ✨

okay so here's the vibe 🌈 this function reports the amount of data in the receive queue — i.e. the number of bytes you can read — and the amount of free space in the transmit queue — i.e. the number of bytes you can write. literally a vibe check for your buffers 💅

Returns 0 for success, or an error code. that's it, that's the whole function, she's lowkey iconic for it 👑

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👑 SEE ALSO 👑

• Kernel file ./arch/powerpc/include/asm/epapr_hcalls.h
• ev_int_set_config(9)
• ev_int_get_config(9)
• ev_int_set_mask(9)
• ev_int_get_mask(9)
• ev_int_eoi(9)
• ev_byte_channel_send(9)
• ev_byte_channel_receive(9)
• ev_int_iack(9)
• ev_doorbell_send(9)
• ev_idle(9)

like, go read her friends too, they're all slaying in their own lanes 🧚💜

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mwah 💋 this page came from ./arch/powerpc/include/asm and was dated October 2026 — so fresh, so demure, so very much giving main character energy 🌸✨ go poll those buffers bestie, iykyk 💖