Commit 9a909447 authored by Hans Werner's avatar Hans Werner Committed by Mauro Carvalho Chehab
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V4L/DVB (10392): lnbp21: documentation about the system register 



Here is a patch which adds some documentation about meanings of the
the lnbp21 system register bits.

Signed-off-by: default avatarHans Werner <hwerner4@gmx.de>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent 784e29d2

drivers/media/dvb/frontends/lnbp21.h

+8 −8
Original line number Diff line number Diff line
@@ -28,14 +28,14 @@ 
#define _LNBP21_H



/* system register bits */

#define LNBP21_OLF	0x01

#define LNBP21_OTF	0x02

#define LNBP21_EN	0x04

#define LNBP21_VSEL	0x08

#define LNBP21_LLC	0x10

#define LNBP21_TEN	0x20

#define LNBP21_ISEL	0x40

#define LNBP21_PCL	0x80

#define LNBP21_OLF     0x01 /* [R-only] 0=OK; 1=over current limit flag*/

#define LNBP21_OTF     0x02 /* [R-only] 0=OK; 1=over temperature flag (150degC typ) */

#define LNBP21_EN      0x04 /* [RW] 0=disable LNB power, enable loopthrough; 1=enable LNB power, disable loopthrough*/

#define LNBP21_VSEL    0x08 /* [RW] 0=low voltage (13/14V, vert pol); 1=high voltage (18/19V,horiz pol) */

#define LNBP21_LLC     0x10 /* [RW] increase LNB voltage by 1V:  0=13/18V; 1=14/19V */

#define LNBP21_TEN     0x20 /* [RW] 0=tone controlled by DSQIN pin; 1=tone enable, disable DSQIN */

#define LNBP21_ISEL    0x40 /* [RW] current limit select 0:Iout=500-650mA,Isc=300mA ; 1:Iout=400-550mA,Isc=200mA*/

#define LNBP21_PCL     0x80 /* [RW] short-circuit prot: 0=pulsed (dynamic) curr limiting; 1=static curr limiting*/



#include <linux/dvb/frontend.h>

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