Re: CDC drivers for a modem in windows 98SE

The previous message should be read switching the word client with the word
customer.

I also found out the reason why they want to have support for win98SE. They
have many PCs with win98SE and they do not want to change OS, it's more
convenient to them to leave everything as it is...

Regards,
ADC


2014-07-18 10:44 GMT+02:00 Angelo Di Chello <[email protected]>:

> Hello, and thank you for the answer.
>
> Why Windows 98SE? That OS has long been obsoleted and unsupported
> by Microsoft.
>
> Yes, I know, I tried to suggest to avoid this kind of support, but I don't
> decide that. You know, the selling managers just nod their heads when you
> tell them not to sell unfeasible or difficult support, then afterwards when
> they are with the client(s) they just sell anything, also what you just
> said was not convenient or infeasible. Lucky me!
>
> Firstly take note Windows 98SE is no longer supported by libusb-win32
> project. So you are on your own. The newer version of libusb-win32
> will most likely not work under Windows 98SE. You may have to
> use the older version like 0.1.12.2.
>
> Secondly certainly it should be feasible to use libusb-win32 since
> it is pretty lower level. But you have to s
>
> Ok, that is fine with me, but you were trying to say something more, don't
> you?
>
> The BSOD may have something to do with usbser.sys (USB ACM only) bugs in
> Windows 98SE. On the other hand, it is said that host program plays a part
> as
> well. You should probably try this route first if you really need to
> support
> Windows 98SE.
>
> I will try to convince my selling manager to limit the support from to xp
> and subsequent OS, but if I fail in this I don't know if I could try and
> trust this solution. Of course this would involve some testing, but it
> could be a double edged sword.
>
> Thanks,
> ADC.
>
>
> 2014-07-18 2:56 GMT+02:00 Xiaofan Chen <[email protected]>:
>
> On Fri, Jul 18, 2014 at 7:24 AM, Angelo Di Chello
>> <[email protected]> wrote:
>> > Hi,
>> > I should deliver drivers CDC ECM and ACM for a new modem connected to
>> the
>> > host pc using usb.
>> > Actually I already have linux, android, win xp, win 7, and win 8
>> drivers,
>> > but I need to deliver also drivers for windows 98 SE.
>>
>> Why Windows 98SE? That OS has long been obsoleted and unsupported
>> by Microsoft.
>>
>> > My question(a request for good suggestion, actually) is what would be
>> the
>> > best option to have win98SE drivers with these functionalities.
>> > I am thinking I could port them using libusb-win32(or equivalent) as an
>> > intermediate layer. Is that feasible in your opinion? Apart from the
>> data
>> > throughput speed loss because win98SE uses usb 1.0/1,1, do you see any
>> > other possible functionality loss?
>>
>> Firstly take note Windows 98SE is no longer supported by libusb-win32
>> project. So you are on your own. The newer version of libusb-win32
>> will most likely not work under Windows 98SE. You may have to
>> use the older version like 0.1.12.2.
>>
>> Secondly certainly it should be feasible to use libusb-win32 since
>> it is pretty lower level. But you have to s
>>
>> > Actually, I have also read somewhere that in the past someone tried to
>> > modify some sys/inf file to make the usb port behave as a com/modem
>> port on
>> > win98SE , like in here:
>> >
>> > http://forums.codeguru.com/showthread.php?311881.html
>> >
>> > , but they also obtained a BSOD when trying a disconnect-connect
>> sequence.
>> > Maybe this solution is faster, but a bit too "dirty". Am I wrong?
>> >
>>
>> The BSOD may have something to do with usbser.sys (USB ACM only) bugs in
>> Windows 98SE. On the other hand, it is said that host program plays a
>> part as
>> well. You should probably try this route first if you really need to
>> support
>> Windows 98SE.
>>
>>
>>
>> --
>> Xiaofan
>>
>>
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>
>

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