[PD] [PD-announce] first alpha hidio 0.1 release

[Hans-Christoph Steiner]

On Jan 29, 2010, at 1:19 PM, Frank Barknecht wrote:

> Hallo,
> Hans-Christoph Steiner hat gesagt: // Hans-Christoph Steiner wrote:
>
>>>> Like with [comport], send [hidio] the [devices( message.
>>>
>>> But this sends to the console, IIRC?
>>
>> Yes, but you can get the info via the right outlet.  So you could do
>> your own search.  Or just open the device using the USB productID/
>> manufactuerID, or by USB HID class (i.e. mouse, joystick, gamepad).
>
> Maybe I have an old version, but the hidio-0.1 I have here doesn't  
> send
> anything to the outlet for closed devices (I use Linux.) "devices"  
> prints to console only,
> "info" prints this:
>
> open 0
> device -1
> total 0
> poll 5
> vendorID 0x0001
> productID 0x0000
> product Unknown
>
> regardless of what devices there are. If devices are open, it prints  
> the info correctly.
>
> How do I open by PID? That would actually be what I want to do. Do I  
> have to
> test-open all possible devices once?


I am assuming PID == productID.  It is possible to open using the  
manuID productID, but there is no way to check if it is present or  
not, except for opening one device at a time using [open $1( and a  
number, then querying it.  For example [open 0x046d 0xc01d( opens my  
mouse no matter what device number it is.

Do you have a use case where you would want to query and not just open?

.hc






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