Issues

• Sound card: about 0.2 % of packets lost on a 48 kHz I2S wire, 0 % on a 24 kHz wire

  PyDevices/usbif#49 · Filter by author bdbarnett opened on Sep 26, 2026

• Sound card: no feedback, so host and codec clocks drift (a tiny click about once a second at 44.1 kHz)

  PyDevices/usbif#40 · Filter by author bdbarnett opened on Sep 24, 2026

• host_stop() wedges after a UAC device was attached but never opened (S3 host, P4 sound card)

  PyDevices/usbif#29 · Filter by author bdbarnett opened on Sep 23, 2026

• machine.USBDevice runtime mode never opens an interface on a usbif image

  PyDevices/usbif#26 · Filter by author bdbarnett opened on Sep 23, 2026
  2

• network.USBD_NCM arrived upstream in 1.29: deliver it as a costume, or record the exclusion

  parked
  PyDevices/usbif#21 · Filter by author bdbarnett opened on Sep 23, 2026
  2

• Can a board be USB host and USB device at the same time? Nothing records an answer

  needs-boardparked
  PyDevices/usbif#16 · Filter by author claude opened on Sep 18, 2026
  2

• P4 host: can a full-speed device enumerate behind a hub? Try the DWC FS/LS-only root port

  parked
  PyDevices/usbif#15 · Filter by author claude opened on Sep 18, 2026
  1

• examples: run #9's test plan on hardware

  needs-board
  PyDevices/usbif#11 · Filter by author bdbarnett opened on Sep 7, 2026
  5

• Device UAC is speaker-only: no microphone / capture endpoint

  enhancement
  PyDevices/usbif#7 · Filter by author cursor opened on Sep 6, 2026

• P4: machine.SDCard() untested on the Waveshare P4 panel — the slot has been empty; GPIO45 is SD D4, not power control

  needs-board
  PyDevices/usbif#4 · Filter by author bdbarnett opened on Sep 4, 2026
  2

• ESP32-P4 high-speed host detects no device; device mode on the same port works

  parked
  PyDevices/usbif#3 · Filter by author bdbarnett opened on Sep 4, 2026
  11