Date: Sun, 10 Apr 2022 02:04:24 +0800 From: Archimedes Gaviola <archimedes.gaviola@gmail.com> To: freebsd-arm@freebsd.org Subject: Raspberry Pi 3B Over-current USB Message-ID: <CAJFbk7FgSnWvN9Z7gp1wqW1CFa8bYqrr6zccMWEhotk5HMR=Tg@mail.gmail.com>
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Hi,
I have a Prolific PL2303 USB-serial device when plugged-in to my Raspberry
Pi 3B (14.0-CURRENT) will cause an over-current situation (enabled USB hub
debugging hw.usb.uhub.debug=1) as observed in the dmesg below. All 4 ports
got no power hence my USB keyboard was disconnected and stopped functioning
and my PL2303 device wasn't able to get detected and load its uplcom(4)
driver. However, the network is still okay in which I am able to access the
system over SSH.
ukbd0: <A4Tech USB Keyboard, class 0/0, rev 2.00/1.05, addr 4> on usbus1
kbd1 at ukbd0
lo0: link state changed to UP
smsc0: chip 0xec00, rev. 0002
ue0: link state changed to DOWN
ue0: link state changed to UP
uhid0 on uhub1
uhid0: <A4Tech USB Keyboard, class 0/0, rev 2.00/1.05, addr 4> on usbus1
usb_needs_explore:
usb_bus_powerd: bus=0xffff000089390000
usb_needs_explore:
usb_bus_powerd: bus=0xffff000089390000
usb_needs_explore:
usb_bus_powerd: bus=0xffff000089390000
usb_needs_explore:
usb_bus_powerd: bus=0xffff000089390000
usb_needs_explore:
usb_bus_powerd: bus=0xffff000089390000
uhub_explore: Overcurrent on port 2.
uhub_reattach_port: reattaching port 4
ugen1.4: <A4Tech USB Keyboard> at usbus1 (disconnected)
ukbd0: at uhub1, port 4, addr 4 (disconnected)
uhub_child_location: device not on hub
uhub_child_pnpinfo: device not on hub
ukbd0: detached
uhid0: at uhub1, port 4, addr 4 (disconnected)
uhub_child_location: device not on hub
uhub_child_pnpinfo: device not on hub
uhid0: detached
usb_needs_explore:
usb_bus_powerd: bus=0xffff000089390000
usb_needs_explore:
usb_bus_powerd: bus=0xffff000089390000
usb_needs_explore:
usb_bus_powerd: bus=0xffff000089390000
Here's also the USB device info of my PL2303 device.
root@generic:~ # usbconfig -u 0 -a 5 dump_all_desc
ugen0.5: <Prolific Technology Inc. USB-Serial Controller> at usbus0,
cfg=0 md=HOST spd=FULL (12Mbps) pwr=ON (100mA)
bLength = 0x0012
bDescriptorType = 0x0001
bcdUSB = 0x0200
bDeviceClass = 0x0000 <Probed by interface class>
bDeviceSubClass = 0x0000
bDeviceProtocol = 0x0000
bMaxPacketSize0 = 0x0040
idVendor = 0x067b
idProduct = 0x2303
bcdDevice = 0x0300
iManufacturer = 0x0001 <Prolific Technology Inc.>
iProduct = 0x0002 <USB-Serial Controller>
iSerialNumber = 0x0000 <no string>
bNumConfigurations = 0x0001
Configuration index 0
bLength = 0x0009
bDescriptorType = 0x0002
wTotalLength = 0x0027
bNumInterfaces = 0x0001
bConfigurationValue = 0x0001
iConfiguration = 0x0000 <no string>
bmAttributes = 0x00a0
bMaxPower = 0x0032
Interface 0
bLength = 0x0009
bDescriptorType = 0x0004
bInterfaceNumber = 0x0000
bAlternateSetting = 0x0000
bNumEndpoints = 0x0003
bInterfaceClass = 0x00ff <Vendor specific>
bInterfaceSubClass = 0x0000
bInterfaceProtocol = 0x0000
iInterface = 0x0000 <no string>
Endpoint 0
bLength = 0x0007
bDescriptorType = 0x0005
bEndpointAddress = 0x0081 <IN>
bmAttributes = 0x0003 <INTERRUPT>
wMaxPacketSize = 0x000a
bInterval = 0x0001
bRefresh = 0x0000
bSynchAddress = 0x0000
Endpoint 1
bLength = 0x0007
bDescriptorType = 0x0005
bEndpointAddress = 0x0002 <OUT>
bmAttributes = 0x0002 <BULK>
wMaxPacketSize = 0x0040
bInterval = 0x0000
bRefresh = 0x0000
bSynchAddress = 0x0000
Endpoint 2
bLength = 0x0007
bDescriptorType = 0x0005
bEndpointAddress = 0x0083 <IN>
bmAttributes = 0x0002 <BULK>
wMaxPacketSize = 0x0040
bInterval = 0x0000
bRefresh = 0x0000
bSynchAddress = 0x0000
I'm using a USB port measuring device that can check the voltage and
current usages and by default (without any USB devices attached) each port
reads as 5.15 volts and 0.00 amperes for current of 3B. I'm using the
official Raspberry Pi Stontronics power adapter with 5.1V with 2.5A DC
output https://docs.rs-online.com/0c30/0900766b814dc7bb.pdf. From here due
to over-current, I cannot obtain the actual power consumptions specific to
my PL2303 device so I try installing the latest Raspberry Pi OS to check if
it behaves the same. I found out that it has a similar behavior and
experience getting over-current with additional under-voltage detected
messages. However, it's interesting to observe that even in an over-current
and under-voltage experience, all the ports are re-powered up and
functioning and then able to load the PL2303 driver and I am able to use it
via /dev/ttyUSB0 device. This time I could see the measuring device giving
a 4.93 volts with 0.46 amperes of current (460mA) in the PL2303 device (see
captured measurement here https://filebin.net/kqq664yf9w70omnh). Below is
the dmesg log I've got from RPi OS.
[ 7490.507686] usb 1-1-port2: over-current change #3
[ 7490.722717] usb 1-1.2: USB disconnect, device number 5
[ 7491.006607] hwmon hwmon1: Undervoltage detected!
[ 7491.094482] usb 1-1.5: new full-speed USB device number 7 using dwc_otg
[ 7491.198613] usb 1-1.5: New USB device found, idVendor=067b,
idProduct=2303, bcdDevice= 3.00
[ 7491.198676] usb 1-1.5: New USB device strings: Mfr=1, Product=2,
SerialNumber=0
[ 7491.198700] usb 1-1.5: Product: USB-Serial Controller
[ 7491.198722] usb 1-1.5: Manufacturer: Prolific Technology Inc.
[ 7491.200210] pl2303 1-1.5:1.0: pl2303 converter detected
[ 7491.206808] usb 1-1.5: pl2303 converter now attached to ttyUSB0
[ 7491.209222] usb 1-1-port2: over-current change #4
[ 7491.646484] usb 1-1.2: new low-speed USB device number 8 using dwc_otg
[ 7491.770462] usb 1-1.2: New USB device found, idVendor=09da,
idProduct=2267, bcdDevice= 1.05
[ 7491.770515] usb 1-1.2: New USB device strings: Mfr=1, Product=2,
SerialNumber=0
[ 7491.770539] usb 1-1.2: Product: USB Keyboard
[ 7491.770560] usb 1-1.2: Manufacturer: A4Tech
[ 7491.793771] input: A4Tech USB Keyboard as
/devices/platform/soc/3f980000.usb/usb1/1-1/1-1.2/1-1.2:1.0/0003:09DA:2267.0004/input/input6
[ 7491.852612] hid-generic 0003:09DA:2267.0004: input,hidraw0: USB HID
v1.11 Keyboard [A4Tech USB Keyboard] on usb-3f980000.usb-1.2/input0
[ 7491.875068] input: A4Tech USB Keyboard as
/devices/platform/soc/3f980000.usb/usb1/1-1/1-1.2/1-1.2:1.1/0003:09DA:2267.0005/input/input7
[ 7491.935697] hid-generic 0003:09DA:2267.0005: input,hidraw1: USB HID
v1.11 Device [A4Tech USB Keyboard] on usb-3f980000.usb-1.2/input1
[ 7495.038507] hwmon hwmon1: Voltage normalised
Though this experience is specific to the Raspberry 3B case, is there a way
to enable this in FreeBSD? Knowing that there is dropping of voltage to
4.93 volts and current is 460mA which is still below the maximum of 500mA?
Thanks,
Archimedes
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<div dir=3D"ltr">
<div>Hi,</div><div><br></div><div>I have a Prolific PL2303 USB-serial=20
device when plugged-in to my Raspberry Pi 3B (14.0-CURRENT) will cause=20
an over-current situation (enabled USB hub debugging=20
hw.usb.uhub.debug=3D1) as observed in the dmesg below. All 4 ports got no=
=20
power hence my USB keyboard was disconnected and stopped functioning and
my PL2303 device wasn't able to get detected and load its uplcom(4) dr=
iver.=20
However, the network is still okay in which I am able to access the=20
system over SSH.<br></div><div><br></div><div>
ukbd0: <A4Tech USB Keyboard, class 0/0, rev 2.00/1.05, addr 4> on usb=
us1<br>kbd1 at ukbd0<br>lo0: link state changed to UP<br>smsc0: chip 0xec00=
, rev. 0002<br>ue0: link state changed to DOWN<br>ue0: link state changed t=
o UP<br>uhid0 on uhub1<br>uhid0: <A4Tech USB Keyboard, class 0/0, rev 2.=
00/1.05, addr 4> on usbus1<br>usb_needs_explore:<br>usb_bus_powerd: bus=
=3D0xffff000089390000<br>usb_needs_explore:<br>usb_bus_powerd: bus=3D0xffff=
000089390000<br>usb_needs_explore:<br>usb_bus_powerd: bus=3D0xffff000089390=
000<br>usb_needs_explore:<br>usb_bus_powerd: bus=3D0xffff000089390000<br>us=
b_needs_explore:<br>usb_bus_powerd: bus=3D0xffff000089390000<br>uhub_explor=
e: Overcurrent on port 2.<br>uhub_reattach_port: reattaching port 4<br>ugen=
1.4: <A4Tech USB Keyboard> at usbus1 (disconnected)<br>ukbd0: at uhub=
1, port 4, addr 4 (disconnected)<br>uhub_child_location: device not on hub<=
br>uhub_child_pnpinfo: device not on hub<br>ukbd0: detached<br>uhid0: at uh=
ub1, port 4, addr 4 (disconnected)<br>uhub_child_location: device not on hu=
b<br>uhub_child_pnpinfo: device not on hub<br>uhid0: detached<br>usb_needs_=
explore:<br>usb_bus_powerd: bus=3D0xffff000089390000<br>usb_needs_explore:<=
br>usb_bus_powerd: bus=3D0xffff000089390000<br>usb_needs_explore:<br>usb_bu=
s_powerd: bus=3D0xffff000089390000</div><div><br></div><div>Here's also=
the USB device info of my PL2303 device.</div><div><br></div><div>
<div>root@generic:~ # usbconfig -u 0 -a 5 dump_all_desc</div><div>=C2=A0 ug=
en0.5: <Prolific Technology Inc. USB-Serial Controller> at usbus0, cf=
g=3D0 md=3DHOST spd=3DFULL (12Mbps) pwr=3DON (100mA)</div><div>=C2=A0 bLeng=
th =3D 0x0012</div><div>=C2=A0 bDescriptorType =3D 0x0001</div><div>=C2=A0 =
bcdUSB =3D 0x0200</div><div>=C2=A0 bDeviceClass =3D 0x0000=C2=A0 <Probed=
by interface class></div><div>=C2=A0 bDeviceSubClass =3D 0x0000</div><d=
iv>=C2=A0 bDeviceProtocol =3D 0x0000</div><div>=C2=A0 bMaxPacketSize0 =3D 0=
x0040</div><div>=C2=A0 idVendor =3D 0x067b</div><div>=C2=A0 idProduct =3D 0=
x2303</div><div>=C2=A0 bcdDevice =3D 0x0300</div><div>=C2=A0 iManufacturer =
=3D 0x0001=C2=A0 <Prolific Technology Inc.></div><div>=C2=A0 iProduct=
=3D 0x0002=C2=A0 <USB-Serial Controller></div><div>=C2=A0 iSerialNum=
ber =3D 0x0000=C2=A0 <no string></div><div>=C2=A0 bNumConfigurations =
=3D 0x0001</div><div><br></div><div>=C2=A0Configuration index 0</div><div><=
br></div><div>=C2=A0 =C2=A0 bLength =3D 0x0009</div><div>=C2=A0 =C2=A0 bDes=
criptorType =3D 0x0002</div><div>=C2=A0 =C2=A0 wTotalLength =3D 0x0027</div=
><div>=C2=A0 =C2=A0 bNumInterfaces =3D 0x0001</div><div>=C2=A0 =C2=A0 bConf=
igurationValue =3D 0x0001</div><div>=C2=A0 =C2=A0 iConfiguration =3D 0x0000=
=C2=A0 <no string></div><div>=C2=A0 =C2=A0 bmAttributes =3D 0x00a0</d=
iv><div>=C2=A0 =C2=A0 bMaxPower =3D 0x0032<br></div><div><br></div><div>=C2=
=A0 =C2=A0 Interface 0</div><div>=C2=A0 =C2=A0 =C2=A0 bLength =3D 0x0009</d=
iv><div>=C2=A0 =C2=A0 =C2=A0 bDescriptorType =3D 0x0004</div><div>=C2=A0 =
=C2=A0 =C2=A0 bInterfaceNumber =3D 0x0000</div><div>=C2=A0 =C2=A0 =C2=A0 bA=
lternateSetting =3D 0x0000</div><div>=C2=A0 =C2=A0 =C2=A0 bNumEndpoints =3D=
0x0003</div><div>=C2=A0 =C2=A0 =C2=A0 bInterfaceClass =3D 0x00ff=C2=A0 <=
;Vendor specific></div><div>=C2=A0 =C2=A0 =C2=A0 bInterfaceSubClass =3D =
0x0000</div><div>=C2=A0 =C2=A0 =C2=A0 bInterfaceProtocol =3D 0x0000</div><d=
iv>=C2=A0 =C2=A0 =C2=A0 iInterface =3D 0x0000=C2=A0 <no string></div>=
<div><br></div><div>=C2=A0 =C2=A0 =C2=A0Endpoint 0</div><div>=C2=A0 =C2=A0 =
=C2=A0 =C2=A0 bLength =3D 0x0007</div><div>=C2=A0 =C2=A0 =C2=A0 =C2=A0 bDes=
criptorType =3D 0x0005</div><div>=C2=A0 =C2=A0 =C2=A0 =C2=A0 bEndpointAddre=
ss =3D 0x0081=C2=A0 <IN></div><div>=C2=A0 =C2=A0 =C2=A0 =C2=A0 bmAttr=
ibutes =3D 0x0003=C2=A0 <INTERRUPT></div><div>=C2=A0 =C2=A0 =C2=A0 =
=C2=A0 wMaxPacketSize =3D 0x000a</div><div>=C2=A0 =C2=A0 =C2=A0 =C2=A0 bInt=
erval =3D 0x0001</div><div>=C2=A0 =C2=A0 =C2=A0 =C2=A0 bRefresh =3D 0x0000<=
/div><div>=C2=A0 =C2=A0 =C2=A0 =C2=A0 bSynchAddress =3D 0x0000</div><div><b=
r></div><div>=C2=A0 =C2=A0 =C2=A0Endpoint 1</div><div>=C2=A0 =C2=A0 =C2=A0 =
=C2=A0 bLength =3D 0x0007</div><div>=C2=A0 =C2=A0 =C2=A0 =C2=A0 bDescriptor=
Type =3D 0x0005</div><div>=C2=A0 =C2=A0 =C2=A0 =C2=A0 bEndpointAddress =3D =
0x0002=C2=A0 <OUT></div><div>=C2=A0 =C2=A0 =C2=A0 =C2=A0 bmAttributes=
=3D 0x0002=C2=A0 <BULK></div><div>=C2=A0 =C2=A0 =C2=A0 =C2=A0 wMaxPa=
cketSize =3D 0x0040</div><div>=C2=A0 =C2=A0 =C2=A0 =C2=A0 bInterval =3D 0x0=
000</div><div>=C2=A0 =C2=A0 =C2=A0 =C2=A0 bRefresh =3D 0x0000</div><div>=C2=
=A0 =C2=A0 =C2=A0 =C2=A0 bSynchAddress =3D 0x0000</div><div><br></div><div>=
=C2=A0 =C2=A0 =C2=A0Endpoint 2</div><div>=C2=A0 =C2=A0 =C2=A0 =C2=A0 bLengt=
h =3D 0x0007</div><div>=C2=A0 =C2=A0 =C2=A0 =C2=A0 bDescriptorType =3D 0x00=
05</div><div>=C2=A0 =C2=A0 =C2=A0 =C2=A0 bEndpointAddress =3D 0x0083=C2=A0 =
<IN></div><div>=C2=A0 =C2=A0 =C2=A0 =C2=A0 bmAttributes =3D 0x0002=C2=
=A0 <BULK></div><div>=C2=A0 =C2=A0 =C2=A0 =C2=A0 wMaxPacketSize =3D 0=
x0040</div><div>=C2=A0 =C2=A0 =C2=A0 =C2=A0 bInterval =3D 0x0000</div><div>=
=C2=A0 =C2=A0 =C2=A0 =C2=A0 bRefresh =3D 0x0000</div><div>=C2=A0 =C2=A0 =C2=
=A0 =C2=A0 bSynchAddress =3D 0x0000</div>
</div><div><br></div><div>I'm using a USB port measuring device that ca=
n
check the voltage and current usages and by default (without any USB=20
devices attached) each port reads as 5.15 volts and 0.00 amperes for=20
current of 3B. I'm using the official Raspberry Pi=20
Stontronics power adapter with 5.1V with 2.5A DC output <a href=3D"https://=
docs.rs-online.com/0c30/0900766b814dc7bb.pdf">https://docs.rs-online.com/0c=
30/0900766b814dc7bb.pdf</a>. From here due=20
to over-current, I cannot obtain the actual power
consumptions specific to my PL2303 device so I try installing the latest
Raspberry Pi OS to check if it behaves the same. I found out that it=20
has a similar behavior and experience getting over-current with=20
additional under-voltage detected messages. However, it's interesting t=
o observe=20
that even in an over-current and under-voltage experience, all the ports=20
are re-powered up and functioning and then able to load the PL2303 driver a=
nd I am able to use it via /dev/ttyUSB0 device. This time I could see=20
the measuring device giving a 4.93 volts with 0.46 amperes of current (460m=
A) in the PL2303 device (see captured measurement here <a href=3D"https://f=
ilebin.net/kqq664yf9w70omnh">https://filebin.net/kqq664yf9w70omnh</a>). Bel=
ow is the dmesg log I've got from RPi OS.<br></div><div><br></div><div>
[ 7490.507686] usb 1-1-port2: over-current change #3<br>[ 7490.722717] usb =
1-1.2: USB disconnect, device number 5<br>[ 7491.006607] hwmon hwmon1: Unde=
rvoltage detected!<br>[ 7491.094482] usb 1-1.5: new full-speed USB device n=
umber 7 using dwc_otg<br>[ 7491.198613] usb 1-1.5: New USB device found, id=
Vendor=3D067b, idProduct=3D2303, bcdDevice=3D 3.00<br>[ 7491.198676] usb 1-=
1.5: New USB device strings: Mfr=3D1, Product=3D2, SerialNumber=3D0<br>[ 74=
91.198700] usb 1-1.5: Product: USB-Serial Controller<br>[ 7491.198722] usb =
1-1.5: Manufacturer: Prolific Technology Inc.<br>[ 7491.200210] pl2303 1-1.=
5:1.0: pl2303 converter detected<br>[ 7491.206808] usb 1-1.5: pl2303 conver=
ter now attached to ttyUSB0<br>[ 7491.209222] usb 1-1-port2: over-current c=
hange #4<br>[ 7491.646484] usb 1-1.2: new low-speed USB device number 8 usi=
ng dwc_otg<br>[ 7491.770462] usb 1-1.2: New USB device found, idVendor=3D09=
da, idProduct=3D2267, bcdDevice=3D 1.05<br>[ 7491.770515] usb 1-1.2: New US=
B device strings: Mfr=3D1, Product=3D2, SerialNumber=3D0<br>[ 7491.770539] =
usb 1-1.2: Product: USB Keyboard<br>[ 7491.770560] usb 1-1.2: Manufacturer:=
A4Tech<br>[ 7491.793771] input: A4Tech USB Keyboard as /devices/platform/s=
oc/3f980000.usb/usb1/1-1/1-1.2/1-1.2:1.0/0003:09DA:2267.0004/input/input6<b=
r>[
7491.852612] hid-generic 0003:09DA:2267.0004: input,hidraw0: USB HID=20
v1.11 Keyboard [A4Tech USB Keyboard] on usb-3f980000.usb-1.2/input0<br>[ 74=
91.875068] input: A4Tech USB Keyboard as /devices/platform/soc/3f980000.usb=
/usb1/1-1/1-1.2/1-1.2:1.1/0003:09DA:2267.0005/input/input7<br>[
7491.935697] hid-generic 0003:09DA:2267.0005: input,hidraw1: USB HID=20
v1.11 Device [A4Tech USB Keyboard] on usb-3f980000.usb-1.2/input1<br>[ 7495=
.038507] hwmon hwmon1: Voltage normalised</div><div><br></div><div>Though
this experience is specific to the Raspberry 3B case, is there a way to
enable this in FreeBSD? Knowing that there is dropping of voltage to=20
4.93 volts and current is 460mA which is still below the maximum of 500mA?<=
/div><div><br></div><div>Thanks,</div><div>Archimedes</div>
</div>
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