Thanks - I thought it was related - I have opened a new ticket:
https://bugs.launchpad.net/ubuntu/+bug/1973648
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Title:
Raspberry Pi 4B: USB OTG
This is unrelated. Please open a new ticket.
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Title:
Raspberry Pi 4B: USB OTG is not working
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Hi
Running RPI4B with Jammy and cannot get the USB Ports to work.
uname -r output:
5.15.0-1006-raspi
dmesg output:
1.842505] dwc2 fe98.usb: supply vusb_d not found, using dummy regulator
[1.842665] dwc2 fe98.usb: supply vusb_a not found, using dummy regulator
[1.895846]
** Changed in: linux-raspi2 (Ubuntu)
Status: Triaged => Fix Released
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Title:
Raspberry Pi 4B: USB OTG is not working
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This bug was fixed in the package linux-raspi - 5.4.0-1012.12
---
linux-raspi (5.4.0-1012.12) focal; urgency=medium
* focal/linux-raspi: 5.4.0-1012.12 -proposed tracker (LP: #1878791)
* Focal update: v5.4.36 upstream stable release (LP: #1876361)
- [Config] raspi:
Confirmed to work now after upgrading to linux-image-5.4.0-1012-raspi,
which also fixed the warm boot issue I'd reported in 1871977.
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Title:
This bug was fixed in the package linux-raspi - 5.4.0-1012.12
---
linux-raspi (5.4.0-1012.12) focal; urgency=medium
* focal/linux-raspi: 5.4.0-1012.12 -proposed tracker (LP: #1878791)
* Focal update: v5.4.36 upstream stable release (LP: #1876361)
- [Config] raspi:
I just upgraded to Focal and yes, the issue just come back.
## from dmesg ##
[5.722325] dwc2 fe98.usb: fe98.usb supply vusb_d not found, using
dummy regulator
[5.722385] dwc2 fe98.usb: fe98.usb supply vusb_a not found, using
dummy regulator
[5.722541] dwc2
so what is the state of this with ubuntu server 20.20 ?
I added “dtoverlay=dwc2,dr_mode=peripheral“ to
/boot/firmware/usercfg.txt but also never seeing the USB-C ethernet show
up when connected to my Ubuntu 18.04 laptop. Then again I might be
missing the equivalent of “modules-load=dwc2” as noted
** Changed in: linux-raspi (Ubuntu Focal)
Status: Triaged => Fix Committed
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Title:
Raspberry Pi 4B: USB OTG is not working
To manage
** Changed in: linux-raspi (Ubuntu Focal)
Importance: Undecided => Medium
** Changed in: linux-raspi (Ubuntu Focal)
Status: New => Triaged
** Changed in: linux-raspi (Ubuntu)
Status: New => Invalid
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** Also affects: linux-raspi (Ubuntu)
Importance: Undecided
Status: New
** Also affects: linux-raspi2 (Ubuntu Focal)
Importance: Undecided
Status: New
** Also affects: linux-raspi (Ubuntu Focal)
Importance: Undecided
Status: New
** No longer affects: linux-raspi
It doesn't seem like it: https://git.launchpad.net/~ubuntu-
kernel/ubuntu/+source/linux/+git/focal/tree/debian.raspi/config/config.common.ubuntu?h=raspi#n7282
I'm currently trying to recompile linux-image-5.4.0-1008-raspi on RPi4
with USB_DWC2_DUAL_ROLE=y
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Sorry to bump an old question/resolution, but did this fix also make it
into the focal 5.4 raspi kernel? I'm seeing something similar to the
original post, but the test kernel above isn't going to work in focal.
Thanks!
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This bug was fixed in the package linux-raspi2 - 5.3.0-1019.21
---
linux-raspi2 (5.3.0-1019.21) eoan; urgency=medium
* eoan/linux-raspi2: 5.3.0-1019.21 -proposed tracker (LP: #1863269)
* Eoan update: upstream stable patchset 2020-02-06 (LP: #1862227)
- [Config] raspi2:
** Changed in: linux-raspi2 (Ubuntu Eoan)
Status: In Progress => Fix Committed
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Title:
Raspberry Pi 4B: USB OTG is not working
To manage
** Also affects: linux-raspi2 (Ubuntu Eoan)
Importance: Undecided
Status: New
** Changed in: linux-raspi2 (Ubuntu Eoan)
Importance: Undecided => High
** Changed in: linux-raspi2 (Ubuntu Eoan)
Status: New => In Progress
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** Description changed:
+ [Impact]
+ On the RPI4B board, the usb-c power port could also work as a USB
+ OTG mode, but we set the dwc2 driver to the host mode
+ unconditionally, now set it to dual_role mode, then it could work
+ in host/otg/peripheal mode.
+
+ [Fix]
+ Set USB_DWC2_DUAL_ROLE=y,
** Changed in: linux-raspi2 (Ubuntu)
Status: New => Triaged
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Title:
Raspberry Pi 4B: USB OTG is not working
To manage notifications
For me I would still prefer using "dtoverlay=dwc2,dr_mode=peripheral" as
it is more reliable at the moment: if pi4 is rebooted remotely, it will
come up with the necessary interface as I added g_cdc to
/etc/modprobe.d/modules.
On my setup it should not be power related, as I'm using a cable that
sorry, typo above: /etc/modules instead of /etc/modprobe.d/modules.
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Title:
Raspberry Pi 4B: USB OTG is not working
To manage notifications
I tried "dtoverlay=dwc2,dr_mode=peripheral" and "dtoverlay=dwc2" with
ubuntu-5.3 kernel, I could see "[18977.499410] usb 1-1.1: device
descriptor read/64, error -110" sometimes too (not always happen), if I
run "rmmod g_ether/g_cdc; modprobe g_ether/g_cdc" many times, it could
work without those
some configuration I'd tried:
1. dtoverlay=dwc_otg, or comment out = no difference
2. with no other dtoverlay, I actually set "dtoverlay=vc4-fkms-v3d" in
syscfg.txt, and comment it out or not also make no difference
I didn't grab every dmesg, but without both dwc_otg and vc4-fkms-v3d,
here you
Hi Hui, just in case I tried again, but no it won't work if I put
"dtoverlay=dwc2" w/o dr_mode. I remember dwc2 should be new code and
should be used, hence why I use that instead of dwc_otg.
Anyway, if we use "dtoverlay=dwc2" only, I guess the actual "dr_mode"
value may not be init properly in
Oh, if we don't add dtoverlay=dwc2, the usb port is driven by dwc_otg
driver by default, if we add dtoverlay=dwc2, then the usb port is driven
by dwc2.
And I tested with only dtoverlay=dwc2 (no dr_mode=peripheral), i could
see usb0 net device both from rpi4 board and my host machine (via
ifconfig
Sorry, too haste, seems like it works a bit different than Raspbian.
Using your new kernel with this set in usercfg.txt, OTG mode is working fine.
dtoverlay=dwc2,dr_mode=peripheral
though with Raspbian, only "dtoverlay=dwc2" is needed, which was what I
was using.
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Thanks Hui for the new kernel. It is not fully working yet though. I
attach the two "dmesg --color=always" output for your comparison.
Using your new kernel, my Pi 4B can load g_ether successfully with
Ubuntu. However, OTG mode is still not working as expected. Connected
to my L470 running
Please test this kernel. this kernel enabled dual_role.
https://people.canonical.com/~hwang4/otg/
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Title:
Raspberry Pi 4B: USB OTG is not
In the ubuntu kernel, we set "CONFIG_USB_DWC2_HOST=y". Let's change it
to "CONFIG_USB_DWC2_DUAL_ROLE=y".
And I remember the driver dwc_otg work while the dwc2/3 doesn't work in
the kernel, since the dwc_otg is highly optimized.
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Thanks for quick reply. It is the same USB-C power supply port which
can also work as OTG port. I tried Raspbian Buster + g_ether with USB
cable connecting to my machine (Lenovo L470 on docking), and it is
detected. On both Raspbian and my L470 running Ubuntu 19.10, usb0 are
created when I do
** Changed in: linux-raspi2 (Ubuntu)
Assignee: (unassigned) => Hui Wang (hui.wang)
** Changed in: linux-raspi2 (Ubuntu)
Importance: Undecided => High
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I remember on the rpi4B board, there is no physical usb-otg port at all?
could you please tell me which port is for otg?
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Title:
Raspberry Pi
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