ENUM CVMX_USB_INITIALIZE_FLAGS(9)

🦋 enum cvmx_usb_initialize_flags(9) 🦋

okay so this is from the Kernel API Manual, bestie — it's the page about enum cvmx_usb_initialize_flags, which is literally just the flags you hand to the initialization function. no cap, that's the whole vibe. 💅

✨ NAME ✨

enum cvmx_usb_initialize_flags — flags used by the initialization function 🫶

🌸 SYNOPSIS 🌸

enum cvmx_usb_initialize_flags {
    CVMX_USB_INITIALIZE_FLAGS_CLOCK_XO_XI ,
    CVMX_USB_INITIALIZE_FLAGS_CLOCK_XO_GND ,
    CVMX_USB_INITIALIZE_FLAGS_CLOCK_MHZ_MASK ,
    CVMX_USB_INITIALIZE_FLAGS_CLOCK_12MHZ ,
    CVMX_USB_INITIALIZE_FLAGS_CLOCK_24MHZ ,
    CVMX_USB_INITIALIZE_FLAGS_CLOCK_48MHZ ,
    CVMX_USB_INITIALIZE_FLAGS_NO_DMA

};

like, that's the whole enum. seven little constants. not me being obsessed with a clock config 😭

🎀 Constants 🎀

• CVMX_USB_INITIALIZE_FLAGS_CLOCK_XO_XI — the USB port uses a 12MHz crystal as clock source at USB_XO and USB_XI. 💎 crystal girlie behavior, honestly.
• CVMX_USB_INITIALIZE_FLAGS_CLOCK_XO_GND — the USB port uses a 12/24/48MHz 2.5V board clock source at USB_XO. and USB_XI should be tied to GND. ⚡
• CVMX_USB_INITIALIZE_FLAGS_CLOCK_MHZ_MASK — the mask for the clock speed field. it's giving "look, a mask" 🔍
• CVMX_USB_INITIALIZE_FLAGS_CLOCK_12MHZ — speed of reference clock or crystal. 🕛
• CVMX_USB_INITIALIZE_FLAGS_CLOCK_24MHZ — speed of reference clock. 🕛🕛
• CVMX_USB_INITIALIZE_FLAGS_CLOCK_48MHZ — speed of reference clock. 🕛🕛🕛🕛
• CVMX_USB_INITIALIZE_FLAGS_NO_DMA — disable DMA and used polled IO for data transfer use for the USB. 👀 yes bestie, that's exactly how it's worded, and yes it's a whole mood — polled IO instead of DMA.

🔥 SEE ALSO 🔥

main character energy from the kernel file ./drivers/usb/host/octeon-hcd.c — go read that one too, it's the source of all this:

• enum cvmx_usb_speed(9)
• enum cvmx_usb_transfer(9)
• enum cvmx_usb_direction(9)
• enum cvmx_usb_status(9)
• struct cvmx_usb_port_status(9)
• struct cvmx_usb_iso_packet(9)
• enum cvmx_usb_pipe_flags(9)
• struct cvmx_usb_transaction(9)
• struct cvmx_usb_pipe(9)
• struct octeon_hcd(9)
• struct octeon_temp_buffer(9)
• octeon_alloc_temp_buffer(9)
• octeon_free_temp_buffer(9)
• octeon_map_urb_for_dma(9)
• octeon_unmap_urb_for_dma(9)

okay that's the whole page, you ate that 💖 this one lives under ./drivers/usb/host, dated October 2026, and it's literally titled enum cvmx_us...ialize_flags(9) — slay, go configure ur clocks bestie 🧚💜