dwc2_read_packet(9)

📦 version 7.3.1, in nixpkgs unstable

💅 dwc2_read_packet(9) — from the Kernel API Manual, bestie ✨

okay so first thing, bestie: this whole page lives in the Kernel API Manual, and the star of the show is dwc2_read_packet — a little function that does exactly one iconic job and does it well. Let's get into it 🎀

✨ NAME ✨

dwc2_read_packet — reads a packet from the Rx FIFO into the destination buffer 🦋

like. that's the whole vibe. packet goes in, buffer comes out. no cap.

🫶 SYNOPSIS 🫶

void dwc2_read_packet (struct dwc2_hsotg *hsotg , u8 *dest , u16 bytes );

she takes three things and returns nothing, which honestly? main character energy. she doesn't need to hand you back a value, she just does the thing 💅

🌸 ARGUMENTS 🌸

  • hsotg — the programming view of the DWC_otg controller. this is your little window into the hardware, your backstage pass fr 💖
  • dest — the destination buffer for the packet. this is where the packet's gonna land, so make sure it's ready to receive her 🙈
  • bytes — the number of bytes to copy to the destination. yes bestie, you have to tell her how much — she's not out here guessing 😭

💜 SEE ALSO 💜

okay this is the part where the manpage goes FULL group-chat and tags literally everyone. the kernel file is ./drivers/usb/dwc2/hcd.c, and these are all the besties in the same friend group:

like. thirty-five functions. she knows everyone. iykyk 🐝

quick vibe check: bytes is literally how many bytes get copied to dest — keep that in mind and you're golden, bestie. no notes, she ate 💅

🌈 and that's the page!! this one's sourced from ./drivers/usb/dwc2, dated October 2026, and it's titled dwc2_read_packet(9) — go forth and read those packets, bestie. periodt 🎀✨

📦 where this page comes from