dvb_ringbuffer_read_user(9)

💖 dvb_ringbuffer_read_user(9) 💖

hey bestie 🫶 welcome to the Kernel API Manual page for dvb_ringbuffer_read_user(9) — yes, the (9) is giving kernel-section main character energy ✨

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🌸 NAME 🌸

dvb_ringbuffer_read_user — reads a buffer into a user pointer 💅

✨ SYNOPSIS ✨

ssize_t dvb_ringbuffer_read_user (struct dvb_ringbuffer *rbuf , u8
       __user *buf , size_t len );

🍓 ARGUMENTS 🍓

• rbuf — pointer to struct dvb_ringbuffer 👑
• buf — pointer to the buffer where the data will be stored 🎀
• len — bytes from ring buffer into buf 🦋

💫 DESCRIPTION 💫

okay so this variant assumes that the buffer is a memory at the userspace. so, it will internally call copy_to_user. literally that's the whole vibe 😌✨

🔥 RETURN 🔥

number of bytes transferred or -EFAULT 💀

bestie, if it's not a byte count, it's -EFAULT — no cap 😭

🌈 SEE ALSO 🌈

Kernel file: ./include/media/dvb_ringbuffer.h

• struct dvb_ringbuffer(9)
• dvb_ringbuffer_init(9)
• dvb_ringbuffer_empty(9)
• dvb_ringbuffer_free(9)
• dvb_ringbuffer_avail(9)
• dvb_ringbuffer_reset(9)
• dvb_ringbuffer_flush(9)
• dvb_ringbuffer_flush_spinlock_wakeup(9)
• DVB_RINGBUFFER_PEEK(9)
• DVB_RINGBUFFER_SKIP(9)
• dvb_ringbuffer_read(9)
• DVB_RINGBUFFER_WRITE_BYTE(9)
• dvb_ringbuffer_write(9)
• dvb_ringbuffer_write_user(9)
• dvb_ringbuffer_pkt_write(9)
• dvb_ringbuffer_pkt_read_user(9)
• dvb_ringbuffer_pkt_read(9)
• dvb_ringbuffer_pkt_dispose(9)
• dvb_ringbuffer_pkt_next(9)

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source/version: ./include/media 🌸 dated October 2026 🌸 dvb_ringbuffer_read_user(9) — byeee bestie, slay responsibly 💖🎀