DeviceDriver_Entry 8 (changes)
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DeviceFS
» DeviceDriver_Entry
» DeviceDriver_Entry 8
DeviceDriver_Entry 8
(SWI -)
| Entry | |
|---|---|
| R0 | 8 (Halt) |
| R2 | DeviceFS stream handle |
| Exit | |
|---|---|
| - | - |
Use
This entry point is called when the free space falls below the threshold (set on creation, or modified by DeviceFS_Threshold).
Notes
It allows the driver to attempt to stop incoming data (e.g. a serial device could perform handshaking).
See also
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