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atkbd: Disable periodic polling by default.

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It is one of the few remaining Giant-locked callouts.  It would be
good to remove it, not mentioning that polling itself is not good.

If this cause keyboard/mouse freezes on some hardware, please set
loader tunable hw.atkbd.hz=1 as workaround and report the issue.

Submitted by:	imp, jhb
This commit is contained in:
Alexander Motin 2022-01-05 15:00:36 -05:00
parent f3c2987f2f
commit ce88117008
1 changed files with 1 additions and 1 deletions
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2
sys/dev/atkbdc/atkbd.c
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@ -77,7 +77,7 @@ typedef struct atkbd_state {
static SYSCTL_NODE(_hw, OID_AUTO, atkbd, CTLFLAG_RD | CTLFLAG_MPSAFE, 0,
"AT keyboard");
static int atkbdhz = 1;
static int atkbdhz = 0;
SYSCTL_INT(_hw_atkbd, OID_AUTO, hz, CTLFLAG_RWTUN, &atkbdhz, 0,
"Polling frequency (in hz)");