Changes between Version 41 and Version 42 of kernel_syscalls


Ignore:
Timestamp:
Sep 16, 2015, 5:43:03 PM (10 years ago)
Author:
alain
Comment:

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  • kernel_syscalls

    v41 v42  
    6565Returns -1 if no available TTY channel, or TTY already allocated.
    6666
    67 === 2) '''_sys_tty_release'''( ) ===
     67=== 2) int '''_sys_tty_release'''( ) ===
    6868This function release the TTY channel allocated to the calling thread. The corresponding thread context slot is reset (0xFFFFFFFF value), and the _tty_channel[channel] entry is decremented. The corresponding channel keep busy until
    6969the value stored in _tty_channel[channel] is non-zero.