STRUCT ISST_IF_MSR_CMDS(9)

🌸 NAME 🌸

okay so welcome to the struct isst_if_msr_cmds(9) page, straight out of the Kernel API Manual 💖 this one's all about struct isst_if_msr_cmds — the structure for msr commands. yes bestie, that's literally the whole name, we're being efficient today ✨

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🎀 SYNOPSIS 🎀

here's the whole shape of it, no cap:

struct isst_if_msr_cmds {
    __u32 cmd_count;
    struct isst_if_msr_cmd msr_cmd[1];
};

like, that's it. that's the struct. she's small but she's doing her job 🫶

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💅 MEMBERS 💅

• cmd_count — this is the number of mailbox commands chilling in msr_cmd[]. that's the count, bestie, she's literally counting 📊
• msr_cmd — holds one or more msr commands. one or more, so don't come at her with zero 🙈

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✨ DESCRIPTION ✨

so the way this works: this structure gets used with the ioctl ISST_IF_MSR_COMMAND to send one or more MSR commands 🔥 that's the whole vibe.

and the IOCTL return value? iconic detail — it indicates the number of commands sent, or an error number if no commands have been sent at all 😭 so yeah, read that return value, it's telling you something important, fr fr.

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🦋 SEE ALSO 🦋

the kernel file that started it all: ./include/uapi/linux/isst_if.h

and the whole friend group, all in their (9) era 👑:

• struct isst_if_platform_info(9)
• struct isst_if_cpu_map(9)
• struct isst_if_cpu_maps(9)
• struct isst_if_io_reg(9)
• struct isst_if_io_regs(9)
• struct isst_if_mbox_cmd(9)
• struct isst_if_mbox_cmds(9)
• struct isst_if_msr_cmd(9)
• struct isst_core_power(9)
• struct isst_clos_param(9)
• struct isst_if_clos_assoc(9)
• struct isst_if_clos_assoc_cmds(9)
• struct isst_tpmi_instance_count(9)
• struct isst_perf_level_info(9)
• struct isst_perf_level_control(9)
• struct isst_perf_feature_control(9)
• struct isst_perf_level_data_info(9)
• struct isst_perf_level_fabric_info(9)
• struct isst_perf_level_cpu_mask(9)
• struct isst_base_freq_info(9)
• struct isst_turbo_freq_info(9)

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okay that's the page!! mwah 💖 this lil beauty lives over in ./include/uapi/linux, dated October 2026 — struct isst_if_msr_cmds(9), Kernel API Manual, that's a wrap bestie, go forth and send those MSR commands 🌈👑