ios.ioctl(integer_cmd, arg) รข integer
Instance Public methods
Provides a mechanism for issuing low-level commands to control or query I/O
devices. Arguments and results are platform dependent. If arg is a
number, its value is passed directly. If it is a string, it is interpreted
as a binary sequence of bytes. On Unix platforms, see ioctl(2)
for details. Not implemented on all platforms.
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