ipc_imem_sys_devlink_write(9)

💅 ipc_imem_sys_devlink_write — a Kernel API Manual moment 🎀

okay so bestie, welcome to the Kernel API Manual entry for ipc_imem_sys_devlink_write, and trust me when I say this one is short but it matters ✨

🌸 NAME 🌸

ipc_imem_sys_devlink_write — route the uplink buffer to CP 💌

Like, that's literally the whole job. Take the buffer, send it up to CP. Slay.

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🦋 SYNOPSIS 🦋

int ipc_imem_sys_devlink_write (struct iosm_devlink *ipc_devlink ,
       unsigned char *buf , int count );

That's the whole signature, no cap. Returns an int, takes three things, done. 👑

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💖 ARGUMENTS 💖

• ipc_devlink — the Devlink_sio instance 🫶 like, this is the devlink buddy you're working with, okay?
• buf — pointer to buffer 📦 the actual data lives here, she's just pointing at it
• count — number of data bytes to write 🔢 how many bytes you're actually sending, bestie, don't get this wrong

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⭐ RETURN ⭐

Returns 0 on success, and a failure value on error 😭 so like, 0 is the good ending, anything else means vibe check failed.

fr fr, always check your return value. main character energy means handling your errors 💅

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🧚 SEE ALSO 🧚

Kernel file ./drivers/net/wwan/iosm/iosm_ipc_imem_ops.h — that's where the source lives, go look, iykyk 👀

• ipc_imem_sys_port_open(9)
• ipc_imem_sys_cdev_write(9)
• ipc_imem_sys_wwan_open(9)
• ipc_imem_sys_wwan_close(9)
• ipc_imem_sys_wwan_transmit(9)
• ipc_imem_wwan_channel_init(9)
• ipc_imem_sys_devlink_open(9)
• ipc_imem_sys_devlink_close(9)
• ipc_imem_sys_devlink_notify_rx(9)
• ipc_imem_sys_devlink_read(9)

the whole friend group honestly 🫶 go read them too, they're iconic 🌈

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mwah 💋 this page came to you from ./drivers/net/wwan/iosm, dated October 2026, and it's filed under ipc_imem_sys_devlink_write(9) — periodt. 🌸✨🎀