dwc2_hc_set_even_odd_frame(9)

💅 dwc2_hc_set_even_odd_frame(9) 💅

okay bestie, welcome to the Kernel API Manual entry for this little function 💖 it's giving “small but important USB host-channel behavior,” and we're gonna get into it.

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✨ NAME ✨

dwc2_hc_set_even_odd_frame — sets the channel property that indicates in which frame a periodic transfer should occur 🌸

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📜 SYNOPSIS 📜

void dwc2_hc_set_even_odd_frame (struct dwc2_hsotg *hsotg , struct
dwc2_host_chan *chan , u32 *hcchar );

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🫶 ARGUMENTS 🫶

• hsotg — programming view of the DWC_otg controller 👑
• chan — identifies the host channel to set up and its properties 🎀
• hcchar — current value of the HCCHAR register for the specified host channel ⭐

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💖 DESCRIPTION 💖

so here's the vibe: this function sets the channel property that indicates in which frame a periodic transfer should occur. cute, right? 💅

but bestie, read this part carefully: This function has no effect on non-periodic transfers 💀 like, literally none. if the transfer isn't periodic, this function is just gonna sit there and do nothing. no cap.

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🔗 SEE ALSO 🔗

kernel file: ./drivers/usb/dwc2/hcd.c — and here's the full squad, bestie 🫶

• dwc2_enable_common_interrupts(9)
• dwc2_enable_host_interrupts(9)
• dwc2_disable_host_interrupts(9)
• dwc2_calc_frame_interval(9)
• dwc2_read_packet(9)
• dwc2_dump_channel_info(9)
• dwc2_hc_init(9)
• dwc2_hc_halt(9)
• dwc2_hc_cleanup(9)
• dwc2_hc_write_packet(9)
• dwc2_hc_do_ping(9)
• dwc2_hc_start_transfer(9)
• dwc2_hc_start_transfer_ddma(9)
• dwc2_hc_continue_transfer(9)
• dwc2_hcd_start(9)
• dwc2_hcd_connect(9)
• dwc2_hcd_disconnect(9)
• dwc2_hcd_rem_wakeup(9)
• dwc2_hcd_stop(9)
• dwc2_core_init(9)
• dwc2_core_host_init(9)
• dwc2_assign_and_init_hc(9)
• dwc2_hcd_select_transactions(9)
• dwc2_queue_transaction(9)
• dwc2_hcd_queue_transactions(9)
• dwc2_port_suspend(9)
• dwc2_port_resume(9)
• dwc2_host_get_tt_info(9)
• dwc2_host_put_tt_info(9)
• dwc2_backup_host_registers(9)
• dwc2_restore_host_registers(9)
• dwc2_host_enter_hibernation(9)
• dwc2_host_enter_partial_power_down(9)
• dwc2_host_enter_clock_gating(9)
• dwc2_host_exit_clock_gating(9)

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byeee 🫶 this page came from the ./drivers/usb/dwc2 source/version and is dated October 2026 💖 mwah 💋