STRUCT RPMSG_DEVICE_OPS(9)

💅 struct rpmsg_device_ops(9) 💅

okay so this is a page from the Kernel API Manual, and bestie, it's lowkey iconic — it's the little indirection table that tells an rpmsg backend which operations it's supposed to implement. Think of it as the group chat rules for your backend. 🫶

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✨ NAME ✨

struct rpmsg_device_ops — indirection table for the rpmsg_device operations. that's it, that's the vibe. 💖

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🌸 SYNOPSIS 🌸

struct rpmsg_device_ops {
    struct rpmsg_device *(*create_channel)(struct rpmsg_device *rpdev,
struct rpmsg_channel_info *chinfo);
    int (*release_channel)(struct rpmsg_device *rpdev, struct
rpmsg_channel_info *chinfo);
    struct rpmsg_endpoint *(*create_ept)(struct rpmsg_device *rpdev,
rpmsg_rx_cb_t cb, void *priv, struct rpmsg_channel_info chinfo);
    int (*announce_create)(struct rpmsg_device *rpdev);
    int (*announce_destroy)(struct rpmsg_device *rpdev);
 };

like, exact copy, no cap — every field, every signature, character for character. 🎀

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🦋 Members 🦋

• create_channel — creates a backend-specific channel. it's optional, so no pressure bestie, do it if you wanna 💅
• release_channel — releases a backend-specific channel. also optional, main character energy only if you feel like it ✨
• create_ept — creates a backend-specific endpoint. this one is required — you literally cannot skip it, periodt 🔥
• announce_create — announces the presence of a new channel. optional, it's giving "nice to have" 🌸
• announce_destroy — announces the destruction of a channel. optional too, equally chill 🦋

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💜 Description 💜

so basically: this is the indirection table for the operations that an rpmsg backend should implement. that's the whole point of it. 👑

here's the tea tho — announce_create and announce_destroy are optional, because the backend might advertise new channels implicitly by creating the endpoints. so like, you don't always need to announce it, iykyk 🧚

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⭐ SEE ALSO ⭐

• Kernel file ./drivers/rpmsg/rpmsg_internal.h struct rpmsg_endpoint_ops(9), rpmsg_ctrldev_register_device(9)

go read those next, bestie, they're lowkey relevant 📚💖

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ngl this whole page is short but it ate. remember: create_ept is the only required one — everything else is optional and that's on purpose 🎀

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and that's the wrap! 💅 this lil beauty lives in ./drivers/rpmsg, dated October 2026, and it's filed under struct rpmsg_device_ops(9) in the Kernel API Manual. slay, go implement your backend now 🦋✨🍓