Another problem after El Capitan

[cabut]

Hello,

After installing El Capitan i cannot connect to my Davis Monitor 2. I am using a Keyspan serial to usb 2 port adapter that worked fine through Yosemite. I have tried unplugging the usb cable to no avail.
There are two choices that show in the dropdown  neither of which give me the Keyspan comm connection choice. Any ideas?
Thanks,
Tom

[WCDev]

Hello Tom,
It looks to be the same problem as reported at:
http://athena.trixology.com/index.php?topic=1850.0

You'll need to check for updated drivers for 10.11.

[cabut]

Thanks, Stu.
I have a Keyspan USA 28xb ,a twin port adapter. I could not find any updated software for that particular model. I have an old Monitor 2. Can anyone recommend a serial port adapter that will work with El Capitan? My iMac is a late 2009 model with usb 2.

Thanks.
Tom

[cabut]

I found an update to 10.10 same as the above referenced user found. It was supposed to be good for an number of Keyspan devices including my USAX28 B.
Unplugged the device, installed the update, and plugged the usb cable back it and my computer promptly had a kernel panic. Tried this twice with the same result found in the crash report.
Any ideas?

Tom
Anonymous UUID:       76C14907-4EEC-C492-41E9-8FD9359F7933

Sat Oct  3 10:01:27 2015

*** Panic Report ***
panic(cpu 0 caller 0xffffff80027d6a9a): Kernel trap at 0xffffff7f830ada69, type 14=page fault, registers:
CR0: 0x000000008001003b, CR2: 0x0000000000000018, CR3: 0x0000000005877000, CR4: 0x0000000000002660
RAX: 0xffffff8019b66c00, RBX: 0xffffff910debbe48, RCX: 0x0000000000000000, RDX: 0x00000000ffffffff
RSP: 0xffffff910debbd20, RBP: 0xffffff910debbda0, RSI: 0x000000000000002d, RDI: 0xffffff8019b66c00
R8:  0x00000000e0000010, R9:  0xffffff7f8302fcc8, R10: 0x0000000000000001, R11: 0x0000000000000004
R12: 0xffffff801b20ee80, R13: 0xffffff8002f254d0, R14: 0xffffff910debbe48, R15: 0xffffff8002c99c40
RFL: 0x0000000000010246, RIP: 0xffffff7f830ada69, CS:  0x0000000000000008, SS:  0x0000000000000000
Fault CR2: 0x0000000000000018, Error code: 0x0000000000000000, Fault CPU: 0x0, PL: 0

Backtrace (CPU 0), Frame : Return Address
0xffffff910debb9b0 : 0xffffff80026e5357
0xffffff


Model: iMac11,1, BootROM IM111.0034.B03, 4 processors, Intel Core i7, 2.8 GHz, 8 GB, SMC 1.54f36
Graphics: ATI Radeon HD 4850, ATI Radeon HD 4850, PCIe, 512 MB
Memory Module: BANK 0/DIMM0, 2 GB, DDR3, 1067 MHz, 0x80AD, 0x484D54313235533642465238432D47372020
Memory Module: BANK 1/DIMM0, 2 GB, DDR3, 1067 MHz, 0x80AD, 0x484D54313235533642465238432D47372020
Memory Module: BANK 0/DIMM1, 2 GB, DDR3, 1067 MHz, 0x80AD, 0x484D54313235533642465238432D47372020
Memory Module: BANK 1/DIMM1, 2 GB, DDR3, 1067 MHz, 0x80AD, 0x484D54313235533642465238432D47372020
AirPort: spairport_wireless_card_type_airport_extreme (0x168C, 0x8F), Atheros 9280: 4.0.74.0-P2P
Bluetooth: Version 4.4.0f4 16320, 3 services, 27 devices, 1 incoming serial ports
Network Service: AirPort, AirPort, en1
Network Service: Ethernet, Ethernet, en0
Serial ATA Device: ST31000528AS, 1 TB
Serial ATA Device: OPTIARC DVD RW AD-5680H
USB Device: USB 2.0 Bus
USB Device: Hub
USB Device: Card Reader
USB Device: BRCM2046 Hub
USB Device: Bluetooth USB Host Controller
USB Device: USB 2.0 Bus
USB Device: Hub
USB Device: Keyboard Hub
USB Device: Apple Optical USB Mouse
USB Device: HP Wireless Eco-Comfort Mobile Mouse
USB Device: Apple Keyboard
USB Device: IR Receiver
USB Device: Built-in iSight
Thunderbolt Bus:

[WCDev]

If you have a TimeMachine backup, you can restore from that to get back to your previous system (see https://support.apple.com/kb/PH18848?locale=en_US).

If not, you can boot in safe mode and remove the driver - see https://support.apple.com/en-us/HT201262