STRUCT TEE_DEVICE(9)

💖 struct tee_device 💖

okay so this page lives in the Kernel API Manual, and it's literally all about struct tee_device — the icon that is the TEE Device representation ✨ (TEE = Trusted Execution Environment, and this struct is its main character).

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🌸 NAME 🌸

struct tee_device — TEE Device representation. that's it, that's the vibe. she's the data structure that is the device 💅

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🦋 SYNOPSIS 🦋

bestie, here's the whole glow-up, exactly as written, no cap:

struct tee_device {
    char name[TEE_MAX_DEV_NAME_LEN];
    const struct tee_desc *desc;
    int id;
    unsigned int flags;
    struct device dev;
    struct cdev cdev;
    size_t num_users;
    struct completion c_no_users;
    struct mutex mutex;
    struct idr idr;
    struct tee_shm_pool *pool;
 };

look at her. eleven members. absolutely ate 🎀

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🎀 Members 🎀

every single field, bestie, none skipped:

• name — the name of the device. her government name, basically 🫶
• desc — the description of the device. the lore, the backstory 💜
• id — the unique id of the device. one of a kind, no duplicates, periodt 👑
• flags — these are represented by TEE_DEVICE_FLAG_REGISTERED above. that's the flag situation 🔥
• dev — the embedded basic device structure. like, the device inside the device, inception-core 😭
• cdev — the embedded cdev. yes she also has one of those tucked in there 🦋
• num_users — the number of active users of this device. who's using her rn, fr fr 🙈
• c_no_users — the completion used when unregistering the device. this is the "everybody out of the pool" signal 💀
• mutex — the mutex protecting num_users and idr. she's the bodyguard for those two, ngl 💅
• idr — the register of user space shared memory objects allocated or registered on this device. all the shm objects living rent-free in here 🍓
• pool — the shared memory pool. the shared-memory aquarium, if you will 🐟✨

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🌈 SEE ALSO 🌈

the whole friend group, tagging along — and yes, every single one of these is real and every one is listed here:

• Kernel file ./include/linux/tee_core.h — go read the source, bestie, it's giving primary source energy 📚
• struct tee_driver_ops(9)
• struct tee_desc(9)
• struct tee_protmem_pool(9)
• struct tee_protmem_pool_ops(9)
• tee_device_alloc(9)
• tee_device_register(9)
• tee_device_unregister(9)
• tee_device_get(9)
• tee_device_put(9)
• tee_device_set_dev_groups(9)
• tee_session_calc_client_uuid(9)
• struct tee_shm_pool(9)
• struct tee_shm_pool_ops(9)
• tee_shm_pool_free(9)
• tee_protmem_static_pool_alloc(9)
• tee_get_drvdata(9)
• tee_shm_alloc_priv_buf(9)
• tee_shm_is_dynamic(9)
• tee_shm_put(9)
• tee_shm_get_id(9)
• tee_shm_get_from_id(9)
• teedev_open(9)
• teedev_close_context(9)
• teedev_ctx_get(9)
• teedev_ctx_put(9)

bestie the SEE ALSO list is long but that's because she's popular 💅 don't skip it, iykyk.

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🌸 okay that's the whole page!! this one came from ./include/linux, dated October 2026, and it's struct tee_device(9) — go forth and read the kernel source, you're gonna slay 🫶✨💖