ibmvmc_read(9)

👑 ibmvmc_read(9) 👑

okay so bestie, welcome to the Kernel API Manual page for ibmvmc_read(9). it's serving kernel-read main character energy, and we're gonna walk through it together. no cap. 💖

🌸 NAME 🌸

ibmvmc_read — Read. that's the name, that's the function, that's the whole vibe. slay. 💅

✨ SYNOPSIS ✨

ssize_t ibmvmc_read (struct file *file , char *buf , size_t nbytes ,
       loff_t *ppos );

🦋 ARGUMENTS 🦋

• file — the file struct, literally a file struct, bestie. 🗂️
• buf — Character buffer. it's the char buffer where the characters are hanging out. 🎀
• nbytes — Size in bytes. the byte-count situation, fr fr. 📏
• ppos — Offset. the offset, the position, the whole location vibe. 📍

🔥 RETURN 🔥

• 0 — Success 🎉
• Non-zero — Failure 😭

that's the return tea: 0 - Success, Non-zero - Failure. periodt.

🌈 SEE ALSO 🌈

like, go look at these too, iykyk:

• Kernel file ./drivers/misc/ibmvmc.c
• h_request_vmc(9)
• ibmvmc_handle_event(9)
• ibmvmc_release_crq_queue(9)
• ibmvmc_reset_crq_queue(9)
• crq_queue_next_crq(9)
• ibmvmc_send_crq(9)
• alloc_dma_buffer(9)
• free_dma_buffer(9)
• ibmvmc_get_valid_hmc_buffer(9)
• ibmvmc_get_free_hmc_buffer(9)
• ibmvmc_free_hmc_buffer(9)
• ibmvmc_count_hmc_buffers(9)
• ibmvmc_get_free_hmc(9)
• ibmvmc_return_hmc(9)
• ibmvmc_send_open(9)
• ibmvmc_send_close(9)
• ibmvmc_send_capabilities(9)
• ibmvmc_send_add_buffer_resp(9)
• ibmvmc_send_rem_buffer_resp(9)
• ibmvmc_send_msg(9)
• ibmvmc_open(9)
• ibmvmc_close(9)
• ibmvmc_poll(9)
• ibmvmc_write(9)
• ibmvmc_setup_hmc(9)
• ibmvmc_ioctl_sethmcid(9)
• ibmvmc_ioctl_query(9)
• ibmvmc_ioctl_requestvmc(9)
• ibmvmc_ioctl(9)
• ibmvmc_add_buffer(9)
• ibmvmc_rem_buffer(9)
• ibmvmc_process_capabilities(9)
• ibmvmc_validate_hmc_session(9)
• ibmvmc_reset(9)
• ibmvmc_reset_task(9)
• ibmvmc_process_open_resp(9)
• ibmvmc_process_close_resp(9)
• ibmvmc_crq_process(9)
• ibmvmc_handle_crq_init(9)
• ibmvmc_handle_crq(9)
• ibmvmc_init_crq_queue(9)

that's the page, bestie 🫶 source/version ./drivers/misc, date October 2026, page ibmvmc_read(9). slay and happy kernel-ing 💖