__host1x_client_register(9)

✨ __host1x_client_register(9) ✨

okay so this is a page straight out of the Kernel API Manual — yes, the actual kernel docs, we're fancy now 💅 — and it's all about registering a host1x client. let's get into it, bestie 🫶

🌸 NAME 🌸

__host1x_client_register — register a host1x client 👑

🦋 SYNOPSIS 🦋

int __host1x_client_register (struct host1x_client *client );

🎀 ARGUMENTS 🎀

• client — the host1x client. that's it, that's the whole argument. she's a struct host1x_client * and she's the main character 💖

🔥 DESCRIPTION 🔥

So what this does: it registers a host1x client with each host1x controller instance. Not one, not some — each. periodt.

But here's the little detail you gotta hold onto: each client will only match their parent host1x controller, and will only be associated with that one instance. no sliding into other controllers' DMs, no cap 🙈

And once all the clients have been registered with their parent host1x controller, the infrastructure takes over and sets up the logical device, then calls host1x_device_init, which in turn calls each client's host1x_client_ops.init implementation. it's giving a whole chain of events, iykyk ✨ the way that the infra just handles it for you is lowkey iconic.

🌈 SEE ALSO 🌈

okay this section is long and honestly ate. here's the full guest list 🎀:

• Kernel file ./drivers/gpu/host1x/bus.c
• host1x_subdev_add(9)
• host1x_subdev_del(9)
• host1x_device_parse_dt(9)
• host1x_device_init(9)
• host1x_device_exit(9)
• host1x_register(9)
• host1x_unregister(9)
• host1x_driver_register_full(9)
• host1x_driver_unregister(9)
• __host1x_client_init(9)
• host1x_client_exit(9)
• host1x_client_unregister(9)
• host1x_bo_pin(9)
• host1x_bo_unpin(9)
• host1x_bo_clear_cached_mappings(9)

ngl bestie, if you're reading this in the kernel tree, the source lives in ./drivers/gpu/host1x and this particular page is dated October 2026. bookmark it, screenshot it, put it on your fridge 🧚💜