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Fix false carrier detection on incoming bidir port.

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This commit is contained in:
Andrey A. Chernov 1994-03-25 15:10:50 +00:00
parent 0bd9d48a0b
commit 70c0dd79d8
3 changed files with 9 additions and 3 deletions
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4
sys/dev/sio/sio.c
View file

@ -31,7 +31,7 @@
* SUCH DAMAGE.
*
* from: @(#)com.c 7.5 (Berkeley) 5/16/91
* $Id: sio.c,v 1.37 1994/03/21 22:19:56 ache Exp $
* $Id: sio.c,v 1.38 1994/03/23 17:28:35 ache Exp $
*/
#include "sio.h"
@ -818,6 +818,8 @@ comhardclose(com)
tsleep((caddr_t)&com->dtr_wait, TTIPRI,
"sioclose", com->dtr_wait);
}
com->last_modem_status =
com->prev_modem_status = inb(com->modem_status_port);
}
#ifdef COM_BIDIR

4
sys/i386/isa/sio.c
View file

@ -31,7 +31,7 @@
* SUCH DAMAGE.
*
* from: @(#)com.c 7.5 (Berkeley) 5/16/91
* $Id: sio.c,v 1.37 1994/03/21 22:19:56 ache Exp $
* $Id: sio.c,v 1.38 1994/03/23 17:28:35 ache Exp $
*/
#include "sio.h"
@ -818,6 +818,8 @@ comhardclose(com)
tsleep((caddr_t)&com->dtr_wait, TTIPRI,
"sioclose", com->dtr_wait);
}
com->last_modem_status =
com->prev_modem_status = inb(com->modem_status_port);
}
#ifdef COM_BIDIR

4
sys/isa/sio.c
View file

@ -31,7 +31,7 @@
* SUCH DAMAGE.
*
* from: @(#)com.c 7.5 (Berkeley) 5/16/91
* $Id: sio.c,v 1.37 1994/03/21 22:19:56 ache Exp $
* $Id: sio.c,v 1.38 1994/03/23 17:28:35 ache Exp $
*/
#include "sio.h"
@ -818,6 +818,8 @@ comhardclose(com)
tsleep((caddr_t)&com->dtr_wait, TTIPRI,
"sioclose", com->dtr_wait);
}
com->last_modem_status =
com->prev_modem_status = inb(com->modem_status_port);
}
#ifdef COM_BIDIR