增加sysfs接口

hc

2023-08-30 862c27fc9920c83318c784bfdadf43a65df1ec8f

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# From http://lists.x.org/archives/xorg-announce/2014-October/002485.html
sha256    0ef8490ff1dede52b7de533158547f8b454b241aa3e4dcca369507f66f216dd9    xcb-util-keysyms-0.4.0.tar.bz2