[time-nuts] Frequency counter recommendation

Chris Caudle chris at chriscaudle.org
Mon Dec 20 02:46:42 UTC 2010


On Sun, December 19, 2010 3:36 pm, Bob Camp wrote:
> My bag full of useless adapters were indeed "class compliant" back in the
> day. Not so any more under the new approach to signed drivers.

The problem with USB-RS232 adapters is that there is no class compliant
device, because there is no USB class for RS232 emulators.  Doesn't exist,
so every device you've ever seen or used is a custom USB device.  The
drivers for the FTDI devices ship with modern variants of Windows and
recent Linux distributions, which makes it behave essentially the same as
a USB class compliant device, but ubiquitous is not the same as
standardized.

-- 
Chris Caudle






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