I like the IOGear -232A a lot. It's the smallest possible size for a USB serial dongle (it looks more like a small serial cable), and I bought it originally because it was supported by FreeBSD. IOGear's site only provides a driver...
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I like the IOGear -232A a lot. It's the smallest possible size for a USB serial dongle (it looks more like a small serial cable), and I bought it originally because it was supported by FreeBSD. IOGear's site only provides a driver for OS 8.x/9.x, however. Bummer! I did some detective work. IOGear and ATEN appear to be the same company, and the IOGear 232A and the ATEN UC232A appear to be the same product. ATEN's site has an OS X driver (or rather, had. It appears to have been taken down) but I couldn't get it to work right. Something about version numbers. No matter. The chip inside the device is made by Prolific Technology. It's their PL-2303 USB serial controller. They also have an OS X driver for the chip. This driver works, but needs one little tweak: After installing the package, go to /System/Library/Extensions/ProlificUsbSerial.kext. Edit the Contents/Info.plist file. Change the idProduct and idVendor numbers to match those you get from the Apple System Profiler (for mine, the Product is 8200 and the Vendor is 1367). Having done all that, you can now kextload ProlificUsbSerial.kext and see /dev/tty.usbserial show up whenever the dongle is plugged in. Enjoy! The last time I checked, the driver was here, but you should check their technical website for updates. Update: It looks like the driver is no longer available from the Prolific Technology site. Not sure why. There is another manufacturer that has it available on their site. You want the newer one (right now it's the v106 one). Since they're nice enough to mirror the driver, I would suggest that if you don't already have a device that you buy theirs instead of IOGear's.
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