projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 910f4461 MCC |
1 | .. -*- coding: utf-8; mode: rst -*- |
| 2 | ||
| 3 | .. _lirc_set_rec_carrier_range: | |
| 4 | ||
| 5 | ******************************** | |
| 6 | ioctl LIRC_SET_REC_CARRIER_RANGE | |
| 7 | ******************************** | |
| 8 | ||
| 9 | Name | |
| 10 | ==== | |
| 11 | ||
| 12 | LIRC_SET_REC_CARRIER_RANGE - Set lower bond of the carrier used to modulate | |
| 13 | IR receive. | |
| 14 | ||
| 15 | Synopsis | |
| 16 | ======== | |
| 17 | ||
| 15c19014 MCC |
18 | .. c:function:: int ioctl( int fd, LIRC_SET_REC_CARRIER_RANGE, __u32 *frequency ) |
| 19 | :name: LIRC_SET_REC_CARRIER_RANGE | |
| 910f4461 MCC |
20 | |
| 21 | Arguments | |
| 22 | ========= | |
| 23 | ||
| 24 | ``fd`` | |
| 25 | File descriptor returned by open(). | |
| 26 | ||
| 910f4461 MCC |
27 | ``frequency`` |
| 28 | Frequency of the carrier that modulates PWM data, in Hz. | |
| 29 | ||
| 30 | Description | |
| 31 | =========== | |
| 32 | ||
| 33 | This ioctl sets the upper range of carrier frequency that will be recognized | |
| 34 | by the IR receiver. | |
| 35 | ||
| 36 | .. note:: | |
| 37 | ||
| 38 | To set a range use :ref:`LIRC_SET_REC_CARRIER_RANGE | |
| 39 | <LIRC_SET_REC_CARRIER_RANGE>` with the lower bound first and later call | |
| 40 | :ref:`LIRC_SET_REC_CARRIER <LIRC_SET_REC_CARRIER>` with the upper bound. | |
| 41 | ||
| 42 | Return Value | |
| 43 | ============ | |
| 44 | ||
| 45 | On success 0 is returned, on error -1 and the ``errno`` variable is set | |
| 46 | appropriately. The generic error codes are described at the | |
| 47 | :ref:`Generic Error Codes <gen-errors>` chapter. |