Hi all,
I’ve been given a this device by a friend, and i’ve been to convert it from ‘Padavan’ to Openwrt.
Under the hood it’s an mt7621 device, plus a Queltek(?) router on it’s internal usb.
On the original padavan firmware i can see the device enumares though it’s usb bus.
I’ve created a very basic dts file for it, mainly by copying and pasting from other
devices dts and made the device superficially work with a 24.10 build, ethernet, wifi,
hardware accelration seems working so far, but I can’t get the 5G modem to come up.
On OpenWRT lsusb only shows 2 devices, under “padavan” there’s 3.
Could anyone please give me some pointers how to figure out to activate this modem ?
What i’ve established so far, that on the original firmware there’s a binary called mtk_gpio,
and if i turn gpio 14 to 0, then the modem powers down, if i turn it back to 1 then it comes up.
Would it make sense to poke around from under OpenWRT, is there a software i can use to test the gpios ? or the only way is to export then and change their values ?
So far i’ve tried adding a “gpio export” and a “regulator” in the dts to this pin @ 14, but no avail, so i start to think maybe it’s under a different gpio in OpenWRT.
lsusb (On OpenWRT)
Bus 001 Device 001: ID 1d6b:0002
Bus 002 Device 001: ID 1d6b:0003
lsusb (On Padavan)
Bus 001 Device 003: ID 2cb7:0a05
Bus 001 Device 001: ID 1d6b:0002
Bus 002 Device 001: ID 1d6b:0003
On “Padavan”:
usb 1-1: New USB device found, idVendor=2cb7, idProduct=0a05
usb 1-1: Product: FM650 Module
usb 1-1: Manufacturer: Fibocom Wireless Inc.
usb 1-1: SerialNumber: 0123456789ABCDEF
cdc_ncm 1-1:1.0: MAC-Address: 9a:ac:c7:86:1f:3e
cdc_ncm 1-1:1.0: weth0: register 'cdc_ncm' at usb-xhci-hcd-1, CDC NCM, 2a:5a:43:27:13:b1
option 1-1:1.2: GSM modem (1-port) converter detected
usb 1-1: GSM modem (1-port) converter now attached to ttyUSB0
option 1-1:1.3: GSM modem (1-port) converter detected
usb 1-1: GSM modem (1-port) converter now attached to ttyUSB1
option 1-1:1.4: GSM modem (1-port) converter detected
usb 1-1: GSM modem (1-port) converter now attached to ttyUSB2
option 1-1:1.5: GSM modem (1-port) converter detected
usb 1-1: GSM modem (1-port) converter now attached to ttyUSB3
PS: Excuse the formatting.