Has anyone tried to add support for the ZBT WE826-Q?
This is a QCA9533 based router and appears to be very similar to the AP147-010. We are interested in using it with modern PCie modems like the Sierra MC7455.
The ZBT firmware is based on Lede 17.01 so it is pretty old and it's drivers are outdated when it comes to modems released in the last few years.
It has a hardware watchdog controlled by a GPIO pin which requires the pin to be pulsed one a second. ZBT has sent me the details of this and I was able to add this to my build system when creating an AP147-010 image that does work on it except for one problem.
If I build a Lede 17.01 image for this everything works correctly but if I make a 18.06.x build for it the USB system is not recognized.
In the 17.01 System Log you see this :
[ 5.269770] SCSI subsystem initialized [ 5.279536] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver [ 5.287781] ehci-platform: EHCI generic platform driver [ 5.293336] ehci-platform ehci-platform: EHCI Host Controller [ 5.299332] ehci-platform ehci-platform: new USB bus registered, assigned bus number 1 [ 5.309614] ehci-platform ehci-platform: irq 3, io mem 0x1b000000 [ 5.328370] ehci-platform ehci-platform: USB 2.0 started, EHCI 1.00 [ 5.335679] hub 1-0:1.0: USB hub found [ 5.339957] hub 1-0:1.0: 1 port detected [ 5.346816] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
but in 18.06.x you get
[ 5.425720] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver [ 5.441733] SCSI subsystem initialized [ 5.450530] ehci-platform: EHCI generic platform driver [ 5.459014] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
The USB system is not found in 18.06.x. Something is different from 17.01.
The packages in each build are the same. I have also tried a stock OpenWrt 18.06.5 and a 19.07 image with the same results.
ZBT is not interested in working with us to get a 18.06.x build working, even after repeated requests from the company that wants to sell these routers.
We also have a QCA9533 router from SX-Tech that works with an AP147-010 image built with 17.01 but shows the same USB problem with 18.06.x.
Does any one know anything about what might be causing this problem?
I am experienced in modifying OpenWrt and building images (I run the ROOter Project) so it isn't a newbie problem. I have made images for other AP147-010 clones that didn't have this problem.
Any help or pointers to a possible problem area would be appreciated.