STRUCT SMB_DRV_DATA(9)

🎀 struct smb_drv_data (9) 🎀

okay bestie, welcome to the Kernel API Manual — this is the page for struct smb_drv_data, and it's literally the little home base for everything an SMB component needs. let's get into it 💅

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✨ NAME ✨

struct smb_drv_data — the specifics associated to an SMB component 🫶

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🌸 SYNOPSIS 🌸

struct smb_drv_data {
    void __iomem *base;
    struct coresight_device *csdev;
    struct smb_data_buffer sdb;
    struct miscdevice miscdev;
    raw_spinlock_t spinlock;
    bool reading;
    pid_t pid;
 };

no cap, that's the whole squad right there 👑

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💖 Members 💖

okay so here's the member-by-member vibe check, one at a time:

• base — the memory mapped base address for the SMB component. it's giving "where everything actually lives" energy ✨
• csdev — the component vitals that the framework needs. the framework is the main character here, and this is its info 🎀
• sdb — the data buffer for SMB. the actual stash of data 💖
• miscdev — the specifics to handle the "/dev/xyz.smb" entry. that's your device node moment 🦋
• spinlock — control data access to one at a time. literally only one at a time, no line-cutting 🙈
• reading — synchronise user space access to the SMB buffer. keeps the reads from stepping on each other 😭
• pid — the process ID of the process being monitored by the session that is using this component. yes, it's tracking that process 🌸

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👑 SEE ALSO 👑

• the Kernel file ./drivers/hwtracing/coresight/ultrasoc-smb.h
• struct smb_data_buffer(9)

iykyk — go read the buffer struct next, fr fr 🔥

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that's the whole page, bestie! this masterpiece lives under ./drivers/hwtracing/coresight, and it's dated October 2026 ⭐ — so yeah, mark your calendar, the future is now 💜🌈