comp_read(9)

💖 comp_read(9) — bestie edition, straight from the Kernel API Manual 💖

okay so we’re doing the comp_read(9) page and it’s giving kernel-core, no cap. This is the manual page for the function that implements the syscall to read from the device. short, iconic, useful. let’s go 🫶

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🌸 NAME 🌸

comp_read — implements the syscall to read from the device. periodt. 💅

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✨ SYNOPSIS ✨

the whole signature, exactly, no edits bestie:

ssize_t comp_read (struct file *filp , char __user *buf , size_t count ,
       loff_t *offset );

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🎀 ARGUMENTS 🎀

four args, all main characters:

• filp — file pointer
• buf — pointer to user buffer
• count — number of bytes to read
• offset — offset from where to start reading

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👑 SEE ALSO 👑

go peek at these next, iykyk:

• Kernel file: ./drivers/most/most_cdev.c
• comp_open(9)
• comp_close(9)
• comp_write(9)
• comp_disconnect_channel(9)
• comp_rx_completion(9)
• comp_tx_completion(9)
• comp_probe(9)

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🫶 that’s the whole page: source tree ./drivers/most, dated October 2026, and we’re out here shipping comp_read(9). mwah 💋