diff options
Diffstat (limited to 'UPDATING')
| -rw-r--r-- | UPDATING | 14 |
1 files changed, 14 insertions, 0 deletions
@@ -16,6 +16,20 @@ from older versions of FreeBSD, try WITHOUT_CLANG to bootstrap to the tip of stable/10, and then rebuild without this option. The bootstrap process from older version of current is a bit fragile. +20150823: + The polarity of Pulse Per Second (PPS) capture events with the + uart(4) driver has been corrected. Prior to this change the PPS + "assert" event corresponded to the trailing edge of a positive PPS + pulse and the "clear" event was the leading edge of the next pulse. + + As the width of a PPS pulse in a typical GPS receiver is on the + order of 1 millisecond, most users will not notice any significant + difference with this change. + + Anyone who has compensated for the historical polarity reversal by + configuring a negative offset equal to the pulse width will need to + remove that workaround. + 20150822: From legacy ata(4) driver was removed support for SATA controllers supported by more functional drivers ahci(4), siis(4) and mvs(4). |
