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If the wskbd driver returns type 0, return "no data" from wskbd_cngetc

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This commit is contained in:
jmcneill 2017-12-18 18:57:21 +00:00
parent e3cfa66d2e
commit 830d1bb205
1 changed files with 6 additions and 2 deletions
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8
sys/dev/wscons/wskbd.c
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@ -1,4 +1,4 @@
/* $NetBSD: wskbd.c,v 1.140 2017/06/13 00:42:27 nat Exp $ */
/* $NetBSD: wskbd.c,v 1.141 2017/12/18 18:57:21 jmcneill Exp $ */
/*
* Copyright (c) 1996, 1997 Christopher G. Demetriou. All rights reserved.
@ -105,7 +105,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: wskbd.c,v 1.140 2017/06/13 00:42:27 nat Exp $");
__KERNEL_RCSID(0, "$NetBSD: wskbd.c,v 1.141 2017/12/18 18:57:21 jmcneill Exp $");
#ifdef _KERNEL_OPT
#include "opt_ddb.h"
@ -1400,6 +1400,10 @@ wskbd_cngetc(dev_t dev)
(*wskbd_console_data.t_consops->getc)
(wskbd_console_data.t_consaccesscookie,
&type, &data);
if (type == 0) {
/* No data returned */
return 0;
}
if (type == WSCONS_EVENT_ASCII) {
/*
* We assume that when the driver falls back