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Michael Piepers homepage | ||||
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BeOS Programs | ||||
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PalmBeach | ||||
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PSION Link Protocol description | ||||
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RFSV Protocol description | ||||
The command FCLOSE used over either a file to close a file or a whole DEVICE. It must; the same file handle to be used, as with the instruction FOPEN one returned the delivery.
It is to be noted that; all values, which are more greater than 8 bits in reverse order will transfer. The LOW byte sent as the first over the line and only then follows the HIGH byte!
The instruction FCLOSE is as consequence built into the PLP:
| Header | PLP | RFSV FCLOSE | Footer | CRC | ||
|---|---|---|---|---|---|---|
| 16 10 02 | 32 03 02 01 | Command 00 00 |
Size 02 00 |
Filehandle 01 00 |
10 03 | 12 34 |
A valid response takes place with the command RESPONSE and returns the delivery an error code.
| Header | PLP | RFSV-RESPONSE | Footer | CRC | ||
|---|---|---|---|---|---|---|
| 16 10 02 | 33 02 03 01 | Command 2a 00 |
size 02 00 |
Result 00 00 |
10 03 | 12 34 |
| bold | Values represent fixed of values, which are used accurately in such a way! |
| italic | Values represent examples, which have a different meaning on the basis the instruction. |
The command FOPEN consists of 3 information units. These have the following meanings:
| Length in byte | possible values | Meaning | |
|---|---|---|---|
| Command | 2 byte | 00 00 (fixed) | The command identifier has always the same value! |
| Size | 2 byte | 00 02 (fixed) | Always two bytes will transfer. |
| Filehandle | 2 byte | variable | It is file handle to transfer, which is to be closed. |
The command FOPEN is answered with RESPONSE. This returns the delivery an error code as result. If 00 00 is returned the delivery, then no error occurred.
| Length in byte | possible values | Meaning | ||||
|---|---|---|---|---|---|---|
| Command | 2 byte | 00 2a (fixed) | The command identifier has always the same value! | |||
| Size | 2 byte | 00 02 (fixed) | 2 additional byte is always supplied! | |||
| Result | 2 byte | variable | The result can obtain the following values:
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|
Michael Piepers homepage | ||||
|
BeOS Programs | ||||
|
PalmBeach | ||||
|
PSION Link Protocol description | ||||
|
RFSV Protocol description | ||||