Author: imp
Date: Sat Jun 18 03:16:51 2011
New Revision: 223219
URL: http://svn.freebsd.org/changeset/base/223219
Log:
More expeirmentation suggests that 10ms isn't as reliable as
previously thought, but 100ms seems to be. Likely there's a good
middle ground, but for now be conservative.
Modified:
head/sys/dev/pccbb/pccbb.c
Modified: head/sys/dev/pccbb/pccbb.c
==============================================================================
--- head/sys/dev/pccbb/pccbb.c Sat Jun 18 02:25:08 2011 (r223218)
+++ head/sys/dev/pccbb/pccbb.c Sat Jun 18 03:16:51 2011 (r223219)
@@ -811,14 +811,14 @@ cbb_power(device_t brdev, int volts)
mtx_unlock(&sc->mtx);
/*
- * Relax for 10ms. Some bridges appear to assert this signal
+ * Relax for 100ms. Some bridges appear to assert this signal
* right away, but before the card has stabilized. Other
* cards need need more time to cope up reliabily.
* Experiments with troublesome setups show this to be a
* "cheap" way to enhance reliabilty. We need not do this for
* "off" since we don't touch the card after we turn it off.
*/
- pause("cbbPwr", min(hz / 100, 1));
+ pause("cbbPwr", min(hz / 10, 1));
/*
* The TOPIC95B requires a little bit extra time to get its
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