Enable filterAddMatchSubsystemDevtype to work with devtype=NULL. #2
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ping? :/ |
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Could we get a new release published to hackage with this change? |
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Initial implementation forces one to pass something as devtype. But according to udev_monitor_filter_add_match_subsystem_devtype documentation, one may pass devtype == NULL to do not filter by devtype. It is not possible to create instance of ByteString which would be converted to NULL, so I propose to use Maybe ByteString here.