Add support for TP-LINK TL-WN727N rev4.

[BigJacobus]

I believe the drivers are just missing from the current build 3.1.

[foxbunny]

Could you please give us the make and model of the wifi adaptor? Or a product page / photo of the package, or something along those lines, if exact make and model are unknown.

[BigJacobus]

Does the below information provide enough detail ?

[ 3437.799880] usb 1-1.3: USB disconnect, device number 4
[ 3440.085030] usb 1-1.3: new high-speed USB device number 6 using dwc_otg
[ 3440.561595] usb 1-1.3: New USB device found, idVendor=148f, idProduct=7601
[ 3440.573433] usb 1-1.3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 3440.665041] usb 1-1.3: reset high-speed USB device number 6 using dwc_otg
[ 3440.776516] mt7601u 1-1.3:1.0: ASIC revision: 76010001 MAC revision: 76010500
[ 3440.790256] mt7601u 1-1.3:1.0: Direct firmware load for mt7601u.bin failed with error -2
[ 3440.804579] mt7601u: probe of 1-1.3:1.0 failed with error -2

[foxbunny]

Yeah, thanks

[foxbunny]

This dongle is suppoed to be using the MediaTek MT7601U chip. Driver seems to have already been installed, so should be just a matter of adding mt7601u.bin firmware.

[foxbunny]

Should also be noted that it may not support AP mode.

[foxbunny]

Some more info on where firmware can be obtained.

EDIT: Actual link to vendor driver

[foxbunny]

Since the page which has the link to the vendor driver says it's under GPL, I will attach the firmware file that was found in the package. Don't ask for the firmware sources cause there were none. ;)

mp7601u.bin.gz

@BigJacobus try booting the Pi without the dongle attached, then copy this file into /lib/firmware and then plug the dongle in. See if that will make it work.

[BigJacobus]

I will have details for you by tomorrow on this. Did not realize there was no SCP support on dropbear.

[foxbunny]

Note that it does not have SFTP though. Some clients may need adjusting.

[BigJacobus]

Some what of a new message.

[ 122.384239] usb 1-1.2: new high-speed USB device number 5 using dwc_otg
[ 122.862275] usb 1-1.2: New USB device found, idVendor=148f, idProduct=7601
[ 122.875466] usb 1-1.2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 123.022571] usb 1-1.2: reset high-speed USB device number 5 using dwc_otg
[ 123.154167] mt7601u 1-1.2:1.0: ASIC revision: 76010001 MAC revision: 76010500
[ 123.172245] mt7601u 1-1.2:1.0: Direct firmware load for mt7601u.bin failed with error -2
[ 123.189853] mt7601u: probe of 1-1.2:1.0 failed with error -2
[ 123.202190] usbcore: registered new interface driver mt7601u

[foxbunny]

Not very promising. Do you have a Linux PC on which you can try? If so, I'd be interested in two things:

1. the dmesg messages when the dongle is plugged in
2. whether mt7601u.bin is present somewhere in /lib/firmware and what the md5 hash of the file is

[BigJacobus]

I run the same adapter in raspbian and its works. I will get that fire up and get you some details.

[BigJacobus]

Okay I am the ID10T this time around. I bought 5 of these adapters all at one and one of them ended up being bad. That happend to be the one I was trying to use. I switched it for another in the batch and its all good to go.

[ 3415.655905] usb 1-1.3: new high-speed USB device number 7 using dwc_otg
[ 3415.767767] usb 1-1.3: New USB device found, idVendor=0bda, idProduct=8176
[ 3415.780506] usb 1-1.3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 3415.793599] usb 1-1.3: Product: 802.11n WLAN Adapter
[ 3415.803948] usb 1-1.3: Manufacturer: Realtek
[ 3415.813895] usb 1-1.3: SerialNumber: 00e04c000001
[ 3416.032205] usbcore: registered new interface driver rtl8192cu
[ 3416.764562] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready

[foxbunny]

Well, that 'bad' device has a different vendor and product ID, though.

[BigJacobus]

Raspbian gave me eve less than ORxPi. I will pass you what I get from there on the original adapter in raspbian.

[foxbunny]

You could try updating Raspbian to 4.4.y kernel and see if it works.

[BigJacobus]

This is what I got under the current kernel. I will see what it takes to get/boot 4.4. and get back with further details.

[ 219.472419] usb 1-1.5: USB disconnect, device number 8
[ 221.500953] usb 1-1.5: new high-speed USB device number 9 using dwc_otg
[ 221.967124] usb 1-1.5: New USB device found, idVendor=148f, idProduct=7601
[ 221.967156] usb 1-1.5: New USB device strings: Mfr=1, Product=2, SerialNumber=3

[BigJacobus]

Ran the following "sudo BRANCH=next rpi-update"
Performed reboot as stated. Never gets past rainbow screen. I will keep digging and get back when I actually have something.

[foxbunny]

Ouch. If it doesn't work out, we'll have a brand new image for testing some time in June. That image will be on 4.4.y so we can revisit then.

[BigJacobus]

Okay firing up in 4.1 kernel.

[ 729.705037] usb 1-1.5: new high-speed USB device number 9 using dwc_otg
[ 730.170718] usb 1-1.5: New USB device found, idVendor=148f, idProduct=7601
[ 730.170756] usb 1-1.5: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 730.265013] usb 1-1.5: reset high-speed USB device number 9 using dwc_otg
[ 730.366256] mt7601u 1-1.5:1.0: ASIC revision: 76010001 MAC revision: 76010500
[ 730.367804] mt7601u 1-1.5:1.0: Firmware Version: 0.1.00 Build: 7640 Build time: 201302052146____
[ 730.774218] mt7601u 1-1.5:1.0: EEPROM ver:0b fae:00
[ 731.012922] ieee80211 phy2: Selected rate control algorithm 'minstrel_ht'
[ 731.227546] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready

lsusb
Bus 001 Device 009: ID 148f:7601 Ralink Technology, Corp.