| 383 | |
| 384 | |
| 385 | int MCP23S17::read8(uint8_t port) |
| 386 | { |
| 387 | if (port > 1) |
| 388 | { |
| 389 | _error = MCP23S17_PORT_ERROR; |
| 390 | return MCP23S17_INVALID_READ; |
| 391 | } |
| 392 | _error = MCP23S17_OK; |
| 393 | if (port == 0) return readReg(MCP23S17_GPIO_A); |
| 394 | return readReg(MCP23S17_GPIO_B); // port == 1 |
| 395 | } |
| 396 | |
| 397 | |
| 398 | // port = 0..1 |