Hi Nick, here is what I get from dmesg with connected FW:
[ 2.513647] usb 1-1.1: new high-speed USB device number 3 using xhci_hcd
[ 2.654591] usb 1-1.1: New USB device found, idVendor=1618, idProduct=c296, bcdDevice= 1.00
[ 2.654613] usb 1-1.1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 2.654631] usb 1-1.1: Product: WestBridge
[ 2.654648] usb 1-1.1: Manufacturer: Cypress
[ 2.654664] usb 1-1.1: SerialNumber: 0000000004BE
[ 6.000733] usb 1-1.1: USB disconnect, device number 3
[ 6.153968] usb 2-1: new SuperSpeed Gen 1 USB device number 3 using xhci_hcd
[ 6.195279] usb 2-1: LPM exit latency is zeroed, disabling LPM.
[ 6.196336] usb 2-1: New USB device found, idVendor=1618, idProduct=c297, bcdDevice= 0.00
[ 6.196362] usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 6.196385] usb 2-1: Product: QHY294P-V210220
[ 6.196402] usb 2-1: Manufacturer: QHYCCD
Thanks Stefan. I can't think of anything else that might be different (apart from no FW appearing in my setup) ?
Cha (qhy guy) seems keen to do something but progress slow due to 8 hour time diff on emails........
Worst case I will attach a mini hub to FW and use USB mode - same setup as when I use ZWO EFW.....
If the FW works via its USB connector then there might be a problem related to the 4-PIN connection between the FW and qhy294.
Maybe the cable or one of the connectors are broken or there is something disconnected inside of the cam or the FW.
Chan should know ways to verify that.
Hi Stefan. Yes it seems very lkely. It's just same as when I connect the camera without the FW.
No comms to FW via camera. I've checked the cable for continuity - all pins seem to be connected to the RJ12 so either problem inside camera or inside FW.........
My ZWO EFW (5 slot used with colour cam): plugged it in and it worked - end of story.......