Linux Standard Base Core Specification, Generic Part | ||
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The cfsetspeed() function shall set the input and output speeds in t to the value specified by speed. The effects of the function on the terminal as described below do not become effective, nor are all errors detected, until the tcsetattr() function is called. Certain values for baud rates set in termios and passed to tcsetattr() have special meanings.
On success, 0 is returned.
On error, -1 is returned and
the global variable errno
is set appropriately.
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