 |
 |
 |
 |
 |
|
|
|
|
|
|
|
Unlock the “inode” and “wake” any waiting processes. This procedure is called by several others (especially “iput”), in addition to “readp” and “writep”.
Section Five is the final section: last but not least. It is concerned with input/output for the slower, character oriented peripheral deviees.
Such devices share a common buffer pool, which is manipulated by a set of standard procedures.
The set of character oriented peripheral devices are exemplified by the following:
KL/DL11 interactive terminal
PC11 paper tape reader/punch
LP11 line printer.
|
|
|
|
|
|