STRUCT IOSM_DEVLINK(9)

💖 struct iosm_devlink(9) 💖

okay so this is a page from the Kernel API Manual, and the star of the show is struct iosm_devlink — literally the IOSM devlink structure itself, no cap. it's giving "backstage pass to the whole devlink situation" and i'm obsessed. let's get into it 🫶

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✨ NAME ✨

struct iosm_devlink — the IOSM Devlink structure. that's her. that's the whole vibe. 💅

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🦋 SYNOPSIS 🦋

bestie. look at this. it's a struct, so it's basically the friend group roster — every field is a member of the squad:

struct iosm_devlink {
    struct iosm_devlink_sio devlink_sio;
    struct iosm_pcie *pcie;
    struct device *dev;
    struct devlink *devlink_ctx;
    struct iosm_flash_params param;
    struct iosm_ebl_ctx_data ebl_ctx;
    struct iosm_coredump_file_info *cd_file_info;
    struct devlink_region_ops
iosm_devlink_mdm_coredump[IOSM_NOF_CD_REGION];
    struct devlink_region *cd_regions[IOSM_NOF_CD_REGION];
 };

(and yes, that struct devlink_region_ops line wraps down onto iosm_devlink_mdm_coredump[IOSM_NOF_CD_REGION]; — that's just how she's written, don't come for her 💀)

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🎀 Members 🎀

okay so every single field, one by one, no skipping, we're doing the full tour 🧚

• devlink_sio — the SIO instance that handles read/write functionality. she does the reading and the writing, highkey multi-talented. 📖✍️
• pcie — a pointer to the PCIe component. just pointing at it, living its life. 👉✨
• dev — a pointer to the device struct. classic. iconic. we love a device pointer. 🎀
• devlink_ctx — a pointer to the devlink context. the context is right there, bestie. 🫶
• param — the params required for flashing. important stuff, put some respect on it. 🔥
• ebl_ctx — the data to be read and written to the Modem. modem says hi. 📡
• cd_file_info — coredump file info. cd here is coredump, not a change directory moment, iykyk. 💀
• iosm_devlink_mdm_coredump — the region ops for coredump collection. it's an array, sized IOSM_NOF_CD_REGION, and it does the collecting. 🗂️
• cd_regions — the coredump regions themselves, also an array of size IOSM_NOF_CD_REGION. matching set, slay. ✨

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🌈 SEE ALSO 🌈

go read these next, bestie, they're all in the kernel file ./drivers/net/wwan/iosm/iosm_ipc_devlink.h and the family is large:

• enum iosm_devlink_param_id(9)
• enum iosm_rpsi_cmd_code(9)
• enum iosm_flash_comp_type(9)
• struct iosm_devlink_sio(9)
• struct iosm_flash_params(9)
• struct iosm_devlink_image(9)
• struct iosm_ebl_ctx_data(9)
• struct iosm_coredump_file_info(9)
• union iosm_rpsi_param_u(9)
• struct iosm_rpsi_cmd(9)

📌 also flagged up top as a see-also: the kernel file ./drivers/net/wwan/iosm/iosm_ipc_devlink.h enum — that's where this whole situationship lives.

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and that's the page, bestie!! 🎀 it lives over in ./drivers/net/wwan/iosm, it's dated October 2026, and it goes by struct iosm_devlink(9). go off, king. 👑💜