Read data from a VUART port into a provided buffer.
result = lv1_read_virtual_uart( /*IN*/ port_number, buffer, bytes, /*OUT*/ bytes_read );
| Inputs | |
|---|---|
| Register | Description |
| R3 | port_number - VUART port number |
| R4 | buffer - pointer to buffer (must be address in lpar) |
| R5 | bytes - buffer size? |
| Outputs | |
| Register | Description |
| R3 | Status - 0 = OK, Other values are unknown, but indicate failure. |
| R4 | bytes_read - number of bytes read into buffer |
Notes: