mhi_get_free_desc_count(9)

✨ mhi_get_free_desc_count(9) ✨

okay so bestie, welcome to the Kernel API Manual — we're doing mhi_get_free_desc_count today and honestly? she's a little icon. 🎀

---

💖 NAME 💖

mhi_get_free_desc_count — Get transfer ring length Get # of TD available to queue buffers

no cap, that's literally what it says — she tells you how long the transfer ring is, i.e. how many TDs you've got free to queue buffers into. 🦋

---

🌸 SYNOPSIS 🌸

int mhi_get_free_desc_count (struct mhi_device *mhi_dev , enum
       dma_data_direction dir );

---

✨ ARGUMENTS ✨

• mhi_dev — the device that's associated with the channels 🫶 that's your main character right there
• dir — the direction of the channel ⭐ like, which way are we going bestie

---

💅 SEE ALSO 💅

okay so this is the whole friend group, and they're all in the kernel file ./include/linux/mhi.h — go say hi 👑

• enum mhi_callback(9)
• enum mhi_flags(9)
• enum mhi_device_type(9)
• enum mhi_ch_type(9)
• struct mhi_buf(9)
• struct image_info(9)
• struct mhi_link_info(9)
• enum mhi_ee_type(9)
• enum mhi_state(9)
• enum mhi_ch_ee_mask(9)
• enum mhi_er_data_type(9)
• enum mhi_db_brst_mode(9)
• struct mhi_channel_config(9)
• struct mhi_event_config(9)
• struct mhi_controller_config(9)
• struct mhi_controller(9)
• struct mhi_device(9)
• struct mhi_result(9)
• struct mhi_driver(9)
• mhi_alloc_controller(9)
• mhi_free_controller(9)
• mhi_register_controller(9)
• mhi_unregister_controller(9)
• __mhi_driver_register(9)
• mhi_driver_unregister(9)
• mhi_set_mhi_state(9)
• mhi_notify(9)
• mhi_prepare_for_power_up(9)
• mhi_async_power_up(9)
• mhi_sync_power_up(9)
• mhi_power_down(9)
• mhi_power_down_keep_dev(9)
• mhi_unprepare_after_power_down(9)
• mhi_pm_suspend(9)
• mhi_pm_resume(9)
• mhi_pm_resume_force(9)
• mhi_download_rddm_image(9)
• mhi_force_rddm_mode(9)
• mhi_get_exec_env(9)
• mhi_get_mhi_state(9)
• mhi_soc_reset(9)
• mhi_device_get_sync(9)
• mhi_device_put(9)
• mhi_prepare_for_transfer(9)
• mhi_unprepare_from_transfer(9)
• mhi_queue_buf(9)
• mhi_queue_skb(9)
• mhi_queue_is_full(9)
• mhi_get_channel_doorbell_offset(9)

---

and that's the whole squad, periodt 💜

she lives in ./include/linux, dated October 2026 — mwah, go read the source bestie, ily, bye! 😭💖🎀