ipc_imem_channel_alloc(9)

🌸 ipc_imem_channel_alloc (9) — like, the Kernel API Manual bestie 💅

okay so real talk: this is a page from the Kernel API Manual (section 9, the kernel-functions girlies), and it's all about reserving a channel. that's it. that's the whole vibe. one function, three arguments, zero drama (unless it errors, then a little drama 😭).

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✨ NAME ✨

ipc_imem_channel_alloc — literally just reserves a channel 🎀

like, it goes and claims one for you so nobody else snatches it. slay.

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🦋 SYNOPSIS 🦋

int ipc_imem_channel_alloc (struct iosm_imem *ipc_imem , int index ,
enum ipc_ctype ctype );

yes bestie, it returns an int. we'll get to what that number means in a sec, don't rush me 💜

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💖 ARGUMENTS 💖

three lil things go in, and you gotta get all three right or it's giving nothing:

• ipc_imem — a pointer to the imem data-struct. like, the whole main-character struct that holds everything together 👑
• index — the ID it looks up from the preallocated list. so you're not inventing a channel, you're picking one off the shelf that's already there 🎀
• ctype — the channel type. enum ipc_ctype energy, iykyk 🦋

ngl, index being "a lookup from the preallocated list" is the whole point — you're choosing, not creating. no cap.

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🔥 RETURN 🔥

• Index on success ✅
• failure value on error 💀

that's it. that's the return. on success you get the index back, and if it flops you get a failure value. periodt.

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🌈 SEE ALSO 🌈

okay this list is long but it's all connected, so buckle up bestie 🫶

Kernel file ./drivers/net/wwan/iosm/iosm_ipc_imem.h, plus:

• enum ipc_ctype(9)
• struct ipc_pipe(9)
• struct ipc_mem_channel(9)
• enum ipc_phase(9)
• struct iosm_imem(9)
• ipc_imem_init(9)
• ipc_imem_pm_s2idle_sleep(9)
• ipc_imem_pm_suspend(9)
• ipc_imem_pm_resume(9)
• ipc_imem_cleanup(9)
• ipc_imem_irq_process(9)
• imem_get_device_sleep_state(9)
• ipc_imem_td_update_timer_suspend(9)
• ipc_imem_channel_close(9)
• ipc_imem_channel_open(9)
• ipc_imem_td_update_timer_start(9)
• ipc_imem_ul_write_td(9)
• ipc_imem_ul_send(9)
• ipc_imem_channel_update(9)
• ipc_imem_channel_free(9)
• ipc_imem_hrtimer_stop(9)
• ipc_imem_pipe_cleanup(9)
• ipc_imem_pipe_close(9)
• ipc_imem_phase_update(9)
• ipc_imem_phase_get_string(9)
• ipc_imem_msg_send_feature_set(9)
• ipc_imem_ipc_init_check(9)
• ipc_imem_channel_init(9)
• ipc_imem_devlink_trigger_chip_info(9)

yeah. all of them. every single one made the list 💅

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✨ cute lil sign-off ✨

this iconic lil page lives in ./drivers/net/wwan/iosm (the wwan/iosm corner of the kernel, we love her 🌸), and it's dated October 2026 — yes, future girlie behavior, we don't question it 💜

go reserve that channel bestie, you're gonna ate 🎀⭐