QNX RTOS v4 Knowledge Base
QNX RTOS v4 Knowledge Base
| Title |
Error using audio device driver from code |
| Ref. No. |
QNX.000009279 |
| Category(ies) |
Configuration, Audio |
| Issue |
We are using the Audio driver in QNX4.24. We start it as follows:
x09Audio mss -b530 -d3 -i5
It creates the dev/dsp as expected. However, when we try to open it for writing with
x09fopen("dev/dsp", "w");
it (the fopen function) returns with errno 22 Invalid Argument.
What does this mean and how could we fix the problem?
|
| Solution |
'mss' doesn't support IRQ 5. It only supports IRQ's 7, 9, 10 and 11.
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