STRUCT ISP1760_UDC(9)

💜 struct isp1760_udc(9) 💜

okay so bestie, we're in the Kernel API Manual and today's main character is struct isp1760_udc — literally the UDC state information struct. it's giving "everything the driver needs to remember about the gadget side" and honestly? iconic. let's get into it 🫶

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✨ NAME ✨

struct isp1760_udc — UDC state information, no cap. here's the whole cast of fields and what each one is doing at the function:

• isp — pointer to struct isp1760_device (it's right there in the struct, bestie)
• irq — the IRQ number
• irqname — the IRQ name, as passed to request_irq
• regs — the regmap for UDC registers
• fields[DC_FIELD_MAX] — array of struct regmap_field *, sized DC_FIELD_MAX
• driver — the gadget driver
• gadget — the gadget device
• lock — this one's the bodyguard 🛡️ it protects driver, vbus_timer, ep, ep0_*, and the DC_EPINDEX register
• vbus_timer — a struct timer_list, just vibing in there
• ep — array of endpoints (ep[15], yes fifteen of them)
• ep0_state — control request state for endpoint 0
• ep0_dir — direction of the current control request
• ep0_length — length of the current control request
• connected — tracks the gadget driver bus connection state
• is_isp1763 — a bool, slaying quietly with no description attached
• devstatus — an unsigned int, also flying under the radar with no description

the original NAME blurb only describes the fields above — isp, fields, vbus_timer, is_isp1763 and devstatus are just out here living their truth with no commentary. we respect it 💅

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🌸 SYNOPSIS 🌸

here's the whole struct, character for character, zero edits, because we do not mess with source code in this group chat:

struct isp1760_udc {
    struct isp1760_device *isp;
    int irq;
    char *irqname;
    struct regmap *regs;
    struct regmap_field *fields[DC_FIELD_MAX];
    struct usb_gadget_driver *driver;
    struct usb_gadget gadget;
    spinlock_t lock;
    struct timer_list vbus_timer;
    struct isp1760_ep ep[15];
    enum isp1760_ctrl_state ep0_state;
    u8 ep0_dir;
    u16 ep0_length;
    bool connected;
    bool is_isp1763;
    unsigned int devstatus;
 };

like… she's got pointers, she's got a spinlock, she's got an array of fifteen endpoints. she contains multitudes 🦋

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🎀 Members 🎀

bestie this section is literally empty in the original. nothing. a whole heading with no content underneath it. we love a mysterious queen who says nothing and leaves ✨

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🦋 SEE ALSO 🦋

• Kernel file ./drivers/usb/isp1760/isp1760-udc.h — go read it, iykyk 💖

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and that's the page, bestie! 🎉 no cap, you now know struct isp1760_udc better than you know your own notifications 💀

sign-off szn: this one came from ./drivers/usb/isp1760, dated October 2026, and its whole title card reads struct isp1760_udc(9). periodt 👑💅