any known working USB/serial converters?

[Steve Underwood]

Gene Heskett wrote:
> On Tuesday 07 July 2009, Steve Underwood wrote:
>   
>> Gene Heskett wrote:
>>     
>>> On Tuesday 07 July 2009, Steve Underwood wrote:
>>>       
>>>> Robert P. J. Day wrote:
>>>>         
>>>>>   a while back, i was whining about the lack of functionality of a
>>>>> particular USB/serial converter:
>>>>>
>>>>> http://osdir.com/ml/fedora-test-list/2009-05/msg00398.html
>>>>>
>>>>>   does anyone have such a converter that just plain works out of the
>>>>> box?  i'm more than happy to buy and try another brand if it's the
>>>>> prolific product that's causing the trouble.
>>>>>           
>>>> The log shown there lists a Prolific pl2303 USB serial converter chip.
>>>> I've been using various converters based on those with Linux for several
>>>> years, and never had a problem. I use them at speeds up to 460800bps.
>>>>
>>>> Steve
>>>>         
>>> yes, and in a low traffic situation, they will throw away the first byte
>>> of a packet about 10% of the time.  That is enough to make them  worthless
>>> for most apps.  Use FTDI stuff.
>>>       
>> My experience is completely the opposite. I found the FTDI devices
>> useless. They keep hiccuping or locking up completely. I've used the
>> prolific devices in applications from intermittent bursts at 1200bps, to
>> endless streaming at 460800bps. I also use them in applications where
>> the adaptor is powering opto couplers, and the voltages end up way off.
>> I've never had problems.
>>
>> Steve
>>     
>
> We will agree to disagree then. I have never had an FTDI deice do anything but 
> work with one singular exception, it was on the end of 2 usb extension cords, 
> with the far end devices plugged into a separate circuit, and the hub did not 
> survive a very close lightning hit, one of maybe .1 secs between the flash and 
> the crack.  pl2303's will not work to my ups, nor will they work for heyu 
> about 25% of the time.  FTDI's Just Work(TM) for both.
>   
Oh wonderful. After years of perfectly good PL2303 performance, the very 
last kernel update for FC9 before it just went EOL has broken PL2303 
support. I'm getting the occasional OOPS. :-(

Steve