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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 | ||||
To request the command STATUS SYSTEM used around information to the file system. A uniform response is to be supplied, even if several different file systems at the computer are available.
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 STATUSSYSTEM is as a consequence built into the PLP:
| Header | PLP | RFSV STATUSSYSTEM | Footer | CRC | |
|---|---|---|---|---|---|
| 16 10 02 | 32 03 02 01 | Command 24 00 |
Size 00 00 |
10 03 | 12 34 |
A valid response takes place with the command RESPONSE and returns the delivery an error code, as well as the information to the file system.
| Header | PLP | RFSV RESPONSE | Footer | CRC | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 16 10 02 | 33 02 03 01 | Command 2a 00 |
Size 22 00 |
Result 00 00 |
Version 02 00 |
Structure 01 00 |
Format 00 00 |
Reserve 26 * ff |
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 STATUSSYSTEM contains 2 information units. They have the following meaning:
| Length in byte | possible values | Meaning | |
|---|---|---|---|
| Command | 2 byte | 00 24 (fixed) | The command identifier has always the same value! |
| Size | 2 byte | 00 00 (fixed) | No further information is needed. |
The command STATUSSYSTEM is answered with RESPONSE. This returns the delivery an error code and the requested information 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 22 (fixed) | Always 34 additional byte are supplied! | ||||||
| Result | 2 byte | variable | The result can obtain the following values:
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| Version | 2 byte | 00 02 (fixed) | The description concerns only of the version 2 | ||||||
| Structure | 2 byte | variable | The structure can obtain the following values:
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| Format | 2 byte | variable | The file system is formatable, or not
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| Reserve | 26 byte | 26 * ff | 26 bytes are reserved for extensions in the version 2 |
|
Michael Piepers homepage | ||||
|
BeOS Programs | ||||
|
PalmBeach | ||||
|
PSION Link Protocol description | ||||
|
RFSV Protocol description | ||||