| Re: [AD] linux hotplugging |
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On 05/24/2012 09:21 PM, Peter Wang wrote:
> On Thu, 24 May 2012 21:01:45 -0600, Trent Gamblin <trent@xxxxxxxxxx> wrote:
>> I'd have to try it first. It has worked for me for quite some time now.
>>
>> Trent
>>
>> On 2012-05-24, at 8:51 PM, Jon Rafkind wrote:
>>
>>> Line 527 of src/linux/ljoynu.c adds an inotify watch on /dev but the joystick scanning code in ljoy_scan looks in /dev/input for joysticks. inotify does not produce events for sub-directories so new js* devices added in /dev/input won't cause an inotify event to be sent due to only /dev being scanned.
>>>
>>> Changing /dev to /dev/input on line 527 fixes this. A user in #allegro confirms it as well. Any objections to me changing this?
> Go ahead.
>
> The only reason to watch on /dev was an attempt to detect /dev/jsN
> devices. But those have been obsolete for ages and a recent kernel with
> inotify support is unlikely to be used on a system with those obsolete
> names.
>
> It's strange that it worked for me and Trent, though. I suppose /dev
> must have been touched in other ways when a device is plugged in,
> triggering the watch.
Yea, examples/ex_joystick_hotplugging is working for me too but I can't figure out why..