diff options
Diffstat (limited to 'drivers/ptp')
| -rw-r--r-- | drivers/ptp/Kconfig | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/ptp/Kconfig b/drivers/ptp/Kconfig index cd9bc3b129bc..5648dad71fb3 100644 --- a/drivers/ptp/Kconfig +++ b/drivers/ptp/Kconfig | |||
| @@ -78,9 +78,13 @@ config PTP_1588_CLOCK_PCH | |||
| 78 | depends on PCH_GBE | 78 | depends on PCH_GBE |
| 79 | help | 79 | help |
| 80 | This driver adds support for using the PCH EG20T as a PTP | 80 | This driver adds support for using the PCH EG20T as a PTP |
| 81 | clock. This clock is only useful if your PTP programs are | 81 | clock. The hardware supports time stamping of PTP packets |
| 82 | getting hardware time stamps on the PTP Ethernet packets | 82 | when using the end-to-end delay (E2E) mechansim. The peer |
| 83 | using the SO_TIMESTAMPING API. | 83 | delay mechansim (P2P) is not supported. |
| 84 | |||
| 85 | This clock is only useful if your PTP programs are getting | ||
| 86 | hardware time stamps on the PTP Ethernet packets using the | ||
| 87 | SO_TIMESTAMPING API. | ||
| 84 | 88 | ||
| 85 | To compile this driver as a module, choose M here: the module | 89 | To compile this driver as a module, choose M here: the module |
| 86 | will be called ptp_pch. | 90 | will be called ptp_pch. |