dwc2_hc_init(9)

💅 dwc2_hc_init(9) — like, the Kernel API Manual page, but make it make sense 🎀

okay so bestie, welcome to the Kernel API Manual, section 9. this is dwc2_hc_init, and it's lowkey one of those little setup functions that everything else depends on. let's get into it ✨

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🌸 NAME 🌸

dwc2_hc_init — prepares a host channel for transferring packets to/from a specific endpoint

like, it's the getting-ready-for-the-transfer moment. think of it as the host channel's glam prep before it goes on stage 💅

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✨ SYNOPSIS ✨

void dwc2_hc_init (struct dwc2_hsotg *hsotg , struct dwc2_host_chan *chan );

no return value, no drama. it just returns void and does its thing. periodt 🫶

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🎀 ARGUMENTS 🎀

• hsotg — the programming view of the DWC_otg controller. this is the big-picture controller brain, iykyk 🧠
• chan — all the info needed to initialize the host channel. literally the snack pack of data this channel needs to get set up 🍓

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🦋 DESCRIPTION 🦋

so here's the vibe check: the HCCHARn register gets set up with all the characteristics specified in chan. that's the whole point — the channel describes itself, and this function writes that into the register ✍️

and not just that — host channel interrupts that may need to be serviced while this transfer is in progress are enabled too. so the channel isn't just cute and configured, it's also listening for interrupts the whole time it's transferring 🔥

no cap, it's a small function doing two very real things. iconic behavior honestly 👑

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🌈 SEE ALSO 🌈

bestie here's the whole friend group, and yes, we're listing every single one because nobody gets left out 💖

also living in the kernel file ./drivers/usb/dwc2/hcd.c, which is the main character of this particular story 📍

• 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_halt(9)
• dwc2_hc_cleanup(9)
• dwc2_hc_set_even_odd_frame(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)

okay that's the whole roster. go read them, they're all lowkey serving in their own ways 😭💜

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🧚 sign-off 🧚

this page comes to you from the source/version spot ./drivers/usb/dwc2, and it's dated October 2026. that's the footer babe, we're done here. go init some channels, bestie — you're gonna slay 🎀✨🌸