Re: (remove) event not supported.

[Keith Owens <kaos@ocs.com.au>]

On Sat, 31 Mar 2001 22:57:18 +1000, 
Brad Hards <bhards@bigpond.net.au> wrote:
>David Brownell wrote:
>> - the dynamic linking framework doesn't track how many devices
>>   are attached to each driver module ... so if there's another device
>>   controlled by the same driver, but it's not opened, removing that
>>   module would be incorrect.  ("module use count" doesn't cover
>>   uses, just opens.)
>This could be trivially extended to have a inc_dev_open_count() and
>inc_dev_use_count(), where the use count get incremented in probe()
>and the open count gets incremented in open(). Naturally you also
>have to have a dec version of each as well, in disconnect() and 
>close().

AFAICT there is no need for another count, you can do MOD_INC_USE_COUNT
in any module function.  The use count does not have to be for just
open.  Add MOD_INC_USE_COUNT to the probe() function for each new
device.


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