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Re: [WriteLog] Writelog 10.58E maybe problem?

To: "'WriteLog List'" <writelog@contesting.com>
Subject: Re: [WriteLog] Writelog 10.58E maybe problem?
From: "Joe Subich, W4TV" <W4TV@subich.com>
Date: Fri, 24 Feb 2006 13:26:08 -0500
List-post: <mailto:writelog@contesting.com>
Except the bug exists in the HARDWARE drivers from FTDI, Prolific
and nearly every other USB chipset manufacturer... that driver becomes
part of the operating system.  It is not within the control of companies
like microHAM to rewrite those drivers (and they probably could not
legally do so).

Other software (e.g. MMTTY, MixW, etc) simply opens/initializes the
port at the operating data rate or at a legal data rate before setting
the desired data rate.  I don't know if Writelog is using the "open at
0 baud" to check for port availability but it would seem that opening
at 1200 baud or 9600 baud would accomplish the same thing while
avoiding the problem.

73,

    ... Joe Subich, W4TV
        microHAM America, LLC.
        www.microHAM-USA.com



> -----Original Message-----
> From: writelog-bounces@contesting.com
> [mailto:writelog-bounces@contesting.com] On Behalf Of Mike
> Mellinger WA0SXV
> Sent: Friday, February 24, 2006 11:21 AM
> To: 'WriteLog List'
> Subject: Re: [WriteLog] Writelog 10.58E maybe problem?
>
>
> Which is a bug in the drivers.  An incorrect parameter,
> assuming that is incorrect, should not crash a driver.  Add
> a couple of lines of code to the driver to check parameters
> and no more problem -- regardless of what users do.
>
> 73,
> Mike WA0SXV
>
>
> -----Original Message-----
> From: writelog-bounces@contesting.com
> [mailto:writelog-bounces@contesting.com] On Behalf Of Joe Subich, W4TV
> Sent: Friday, February 24, 2006 09:11
> To: ve3gsi@canada.com; 'Earl'; k0bx@qsl.net
> Cc: 'WriteLog List'
> Subject: Re: [WriteLog] Writelog 10.58E maybe problem?
>
>
> The problem is that WirteLog first opens the port at zero baud
> and then sets the baud rate.  This crashes the several (all?) of
> the USB drivers - including the FTDI d2xx drivers used by microHAM.
>
> 73,
>
>     ... Joe Subich, W4TV
>         microHAM America, LLC.
>         www.microHAM-USA.com
>


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