Martin Gregorie wrote:
> Steve W. Jackson wrote:
>> In article
>> <3d06056d-fa64-4aaa-ba89-4cfd49563a55@[EMAIL PROTECTED]
>,
>> Gadgetman <stewart.gadget@[EMAIL PROTECTED]
> wrote:
>>
>>> I have a simple requirement at this point an Apple MAC OS X - that is
>>> to detect the presence or lack of a USB device from java.
>>>
>>> I have read about JSR 80, javax.usb, jUSB and all indicate not
>>> available in Mac OS X.
>>> I also know that in linux, I can do a "cat /proc/bus/usb/devices" and
>>> get a list of devices connected to the machine.
>>> Now Mac OS X is "linux" - yet there doesn't appear to be /proc/dev/...
>>> etc.
>>>
>>> Any suggestions on how to get the presence or lack of a USB device
>>> from java on Mac OS X??
>>
>> And where, exactly, did you hear that Mac OS X is "linux" again?
>>
>> Mac OS X is based on BSD. You'll also find that some of the other
>> operating systems with a Un*x basis also don't use /proc. As I recall
>> from my very earliest days with AT&T System V Unix, it didn't. I
>> think the first one I encountered that did was Sun's Solaris.
> >
> I'm told that /proc is uniquely a Linux-ism. I certainly haven't noticed
> it on Solaris or any Unix SVR4 system. I think Linux borrowed the
> concept from Plan9, which was the first OS I heard of that implemented
> it (yes, even before OS-9's 1979 introduction the idea of naming all
> memory modules, hanging them off a linked list to act as an index and
> providing the mdir utility to show you what's in memory.
I don't know where /proc originated, but it certainly exists in Solaris.
See http://docs.sun.com/app/docs/doc/817-5432/6mkt028lc?l=en&a=view,
"Solaris 8 2/04 Reference Manual Collection >> man pages section 4: File
Formats >> File Formats >> proc(4) – /proc, the process file system"
Patricia
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