raspberry pi 2 wi-fi interface missing even module should be in the kernel

gnoma · Apr 30, 2018

Hello,

I just hot my new raspberry pi 2. I see a big fat Broadcom chip on it that says "BCM2836" and I'm sure that this one should be the wireless card.

I'm using a standard image for RPI2 with nothing custom on it.

I have downloaded the source and on the default conf file I see that it's included:

Code:

root@micro:/usr/src/sys/arm/broadcom/bcm2835 # grep -i bcm2836 /usr/src/sys/arm/conf/RPI2
include         "../broadcom/bcm2835/std.bcm2836"
root@micro:/usr/src/sys/arm/broadcom/bcm2835 #

Even if it was not included I wasn't sure which module to load and I did lot's of google searching regarding RPI2 and I have loaded a lots of modules that may be related:

Code:

root@micro:/usr/src/sys/arm/broadcom/bcm2835 # kldstat
Id Refs Address    Size     Name
 1   29 0xc0000000 8d8e30   kernel
 2    1 0xc3e2f000 a000     wlan_amrr.ko
 3    6 0xc4125000 4c000    wlan.ko
 4    1 0xc3d3d000 e000     bridgestp.ko
 5    1 0xc4185000 d000     if_vlan.ko
 6    1 0xc41a8000 24000    if_urtwn.ko
 7    3 0xc4198000 b000     firmware.ko
 8    1 0xc41e5000 9000     wlan_xauth.ko
 9    1 0xc41f8000 a000     wlan_wep.ko
10    1 0xc3d4f000 b000     wlan_tkip.ko
11    1 0xc4208000 e000     wlan_ccmp.ko
12    1 0xc4228000 d000     rtwn-rtl8192cfwU.ko
13    1 0xc4218000 d000     rtwn-rtl8192cfwU_B.ko

And still I see no other device appearing under the ifconfig -a command except the Ethernet device.
Got no wireless interface and I'm running out of ideas.

Code:

root@micro:/usr/src/sys/arm/broadcom/bcm2835 # ifconfig -a
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> metric 0 mtu 16384
        options=600003<RXCSUM,TXCSUM,RXCSUM_IPV6,TXCSUM_IPV6>
        inet6 ::1 prefixlen 128
        inet6 fe80::1%lo0 prefixlen 64 scopeid 0x1
        inet 127.0.0.1 netmask 0xff000000
        groups: lo
        nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
ue0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
        options=80009<RXCSUM,VLAN_MTU,LINKSTATE>
        ether b8:27:eb:bd:92:bc
        hwaddr b8:27:eb:bd:92:bc
        inet 192.168.1.191 netmask 0xffffff00 broadcast 192.168.1.255
        media: Ethernet autoselect (100baseTX <full-duplex>)
        status: active
        nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>

Anybody got idea what I do wrong? Any assistance would be appreciated

Cheers/Beers!

BSDAppentic3 · Apr 30, 2018

Which release are you using in that equipment? 11.1 I expect.
Also you need to see if your chipset it's supported (speaking in FreeBSD, of course). I said it because I still can't compile the driver for a Atheros AR9721, note that a Daemon of here told me that this model isn't supported currently. Probably it could be your case, idk.

BSDAppentic3 · Apr 30, 2018

You said that you haven't wireless interface. I haven't it neither.
Did you connected your adapter?
Did you already tried with this?:

Code:

 # usbconfig -u 4 -a 3 dump_device_desc

Note: hit enter. If you can't see your device, repelace the "3" with a 2,1,0,4,etc.,until you see your device. If you already tried with these numbers, try changing the "4" for another number.

BSDAppentic3 · Apr 30, 2018

Here is an example:

Code:

root@hostfbsd:~ # usbconfig -u 4 -a 2 dump_device_desc
ugen4.2: <Kingston DataTraveler 2.0> at usbus4, cfg=0 md=HOST spd=HIGH (480Mbps) pwr=ON (200mA)

  bLength = 0x0012 
  bDescriptorType = 0x0001 
  bcdUSB = 0x0200 
  bDeviceClass = 0x0000  <Probed by interface class>
  bDeviceSubClass = 0x0000 
  bDeviceProtocol = 0x0000 
  bMaxPacketSize0 = 0x0040 
  idVendor = 0x0951 
  idProduct = 0x1665 
  bcdDevice = 0x0100 
  iManufacturer = 0x0001  <Kingston>
  iProduct = 0x0002  <DataTraveler 2.0>
  iSerialNumber = 0x0003  <00400539BC5BBDC1873D005A>
  bNumConfigurations = 0x0001

BSDAppentic3 · Apr 30, 2018

Code:

root@micro:/usr/src/sys/arm/broadcom/bcm2835 # ifconfig -a
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> metric 0 mtu 16384
        options=600003<RXCSUM,TXCSUM,RXCSUM_IPV6,TXCSUM_IPV6>
        inet6 ::1 prefixlen 128
        inet6 fe80::1%lo0 prefixlen 64 scopeid 0x1
        inet 127.0.0.1 netmask 0xff000000
        groups: lo
        nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
ue0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
        options=80009<RXCSUM,VLAN_MTU,LINKSTATE>
        ether b8:27:eb:bd:92:bc
        hwaddr b8:27:eb:bd:92:bc
        inet 192.168.1.191 netmask 0xffffff00 broadcast 192.168.1.255
        media: Ethernet autoselect (100baseTX <full-duplex>)
        status: active
        nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>

There's something extrange here. I have:

Code:

root@hostfbsd:~ # ifconfig -a
re0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
        options=8209b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,WOL_MAGIC,LINKSTATE>
        ether 70:85:c2:4e:69:55
        hwaddr 70:85:c2:4e:69:55
        inet 192.168.1.104 netmask 0xffffff00 broadcast 192.168.1.255
        nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
        media: Ethernet autoselect (100baseTX <full-duplex>)
        status: active
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> metric 0 mtu 16384
        options=600003<RXCSUM,TXCSUM,RXCSUM_IPV6,TXCSUM_IPV6>
        inet6 ::1 prefixlen 128
        inet6 fe80::1%lo0 prefixlen 64 scopeid 0x2
        inet 127.0.0.1 netmask 0xff000000
        nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
        groups: lo

Edit: I'm reading in the handbook that re0 and ue0 aren't the same kind of interface.

gnoma · Apr 30, 2018

Hello,

Thank you for the quick response.

I'm using 11.1 stable:

Code:

root@micro:~ # uname -a
FreeBSD micro.deltanews.lan 11.1-STABLE FreeBSD 11.1-STABLE #0 r332428: Thu Apr 12 18:29:17 UTC 2018     root@releng2.nyi.freebsd.org:/usr/obj/arm.armv6/usr/src/sys/RPI2  arm
root@micro:~ #

My USB devices are as follows:

Code:

root@micro:~ # usbconfig list
ugen0.1: <DWCOTG OTG Root HUB> at usbus0, cfg=0 md=HOST spd=HIGH (480Mbps) pwr=SAVE (0mA)
ugen0.2: <vendor 0x0424 product 0x9514> at usbus0, cfg=0 md=HOST spd=HIGH (480Mbps) pwr=SAVE (2mA)
ugen0.3: <vendor 0x0424 product 0xec00> at usbus0, cfg=0 md=HOST spd=HIGH (480Mbps) pwr=ON (2mA)
root@micro:~ #
root@micro:~ # usbconfig -u 0 -a 1 dump_device_desc
ugen0.1: <DWCOTG OTG Root HUB> at usbus0, cfg=0 md=HOST spd=HIGH (480Mbps) pwr=SAVE (0mA)

  bLength = 0x0012
  bDescriptorType = 0x0001
  bcdUSB = 0x0200
  bDeviceClass = 0x0009  <HUB>
  bDeviceSubClass = 0x0000
  bDeviceProtocol = 0x0001
  bMaxPacketSize0 = 0x0040
  idVendor = 0x0000
  idProduct = 0x0000
  bcdDevice = 0x0100
  iManufacturer = 0x0001  <DWCOTG>
  iProduct = 0x0002  <OTG Root HUB>
  iSerialNumber = 0x0000  <no string>
  bNumConfigurations = 0x0001

root@micro:~ # usbconfig -u 0 -a 2 dump_device_desc
ugen0.2: <vendor 0x0424 product 0x9514> at usbus0, cfg=0 md=HOST spd=HIGH (480Mbps) pwr=SAVE (2mA)

  bLength = 0x0012
  bDescriptorType = 0x0001
  bcdUSB = 0x0200
  bDeviceClass = 0x0009  <HUB>
  bDeviceSubClass = 0x0000
  bDeviceProtocol = 0x0002
  bMaxPacketSize0 = 0x0040
  idVendor = 0x0424
  idProduct = 0x9514
  bcdDevice = 0x0200
  iManufacturer = 0x0000  <no string>
  iProduct = 0x0000  <no string>
  iSerialNumber = 0x0000  <no string>
  bNumConfigurations = 0x0001

root@micro:~ # usbconfig -u 0 -a 3 dump_device_desc
ugen0.3: <vendor 0x0424 product 0xec00> at usbus0, cfg=0 md=HOST spd=HIGH (480Mbps) pwr=ON (2mA)

  bLength = 0x0012
  bDescriptorType = 0x0001
  bcdUSB = 0x0200
  bDeviceClass = 0x00ff  <Vendor specific>
  bDeviceSubClass = 0x0000
  bDeviceProtocol = 0x0001
  bMaxPacketSize0 = 0x0040
  idVendor = 0x0424
  idProduct = 0xec00
  bcdDevice = 0x0200
  iManufacturer = 0x0000  <no string>
  iProduct = 0x0000  <no string>
  iSerialNumber = 0x0000  <no string>
  bNumConfigurations = 0x0001

root@micro:~ #

ue0 is the Ethernet interface, but I was expecting another interface - the wireless one to appear.

Edit:
I think the re0 is the name for realtek LAN driver. I'm not sure what mine is.

BSDAppentic3 · Apr 30, 2018

gnoma Exactly. But then you have lo0 (which I think that it's lan interface) and the other, ue0 .

gnoma · Apr 30, 2018

Yes,

lo0 = loopback
ue0 = LAN

And no wireless ;(

tobik@ · Apr 30, 2018

I didn't know the RPI2 had a wireless option? The BCM2836 is the Pi's SoC not its wireless card.

Generally wireless interfaces will first appear in sysctl net.wlan.devices on FreeBSD 11.0 and up. They'll only appear in ifconfig when you create wlan0,wlan1,...,wlanN interfaces as described in the handbook.

https://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/network-wireless.html

ekingston · Apr 30, 2018

gnoma said:
Hello,

I just hot my new raspberry pi 2. I see a big fat Broadcom chip on it that says "BCM2836" and I'm sure that this one should be the wireless card.
...
Cheers/Beers!

The BCM2836 is the CPU (https://www.adafruit.com/product/2358). The Raspberry Pi 2 doesn't have Wifi. The Pi 3 has Wifi (https://www.adafruit.com/product/3055).

Are you sure you meant Pi 2?

gnoma · Apr 30, 2018

Hmmm, so sorry "(

I got it as a raspberry with wifi, looks like I'll return it back but this is no longer technical/FreeBSD issue.

Thanks for the help anyway

BSDAppentic3 · Apr 30, 2018

gnoma said:
Hmmm, so sorry "(

I got it as a raspberry with wifi, looks like I'll return it back but this is no longer technical/FreeBSD issue.

Thanks for the help anyway

So the problem isn't FreeBSD? Are you sure?

gnoma · Apr 30, 2018

Well, the problem is that I buy a device that was suppose to have wi-fi but it apparently doesn't.
I'll return it back to the seller and ask for RPI3 or whatever else micro device they got compatible with FreeBSD and having wi-fi.

So yes, I'm sure FreeBSD is not the problem.

Phishfry · Apr 30, 2018

Here they mention RPi3 wireless
https://wiki.freebsd.org/SDIO

Spartrekus · Apr 30, 2018

I got no wireless working on raspberry, actually which is good, it is much faster to use Ethernet ...
For instance, for VNC; ethernet faster.

raspberry pi 2 wi-fi interface missing even module should be in the kernel

gnoma

BSDAppentic3

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