Hi,
I want to change frontend.h in a source and binary compatible way to
allow setting 5V (for active DVB-T antennas) and 12V (for DiSEqC
switches which don't need 13V or 18V to switch polarization).
Here's my proposal:
Index: linux/include/linux/dvb/frontend.h
===================================================================
RCS file: /cvs/linuxtv/dvb-kernel/linux/include/linux/dvb/frontend.h,v
retrieving revision 1.18
diff -u -r1.18 frontend.h
--- linux/include/linux/dvb/frontend.h 2 Mar 2005 21:42:01 -0000 1.18
+++ linux/include/linux/dvb/frontend.h 22 Jul 2005 18:52:46 -0000
@@ -101,9 +101,11 @@
typedef enum fe_sec_voltage {
- SEC_VOLTAGE_13,
- SEC_VOLTAGE_18,
- SEC_VOLTAGE_OFF
+ SEC_VOLTAGE_13, /* 13V DVB-S vertical */
+ SEC_VOLTAGE_18, /* 18V DVB-S horizontal */
+ SEC_VOLTAGE_OFF, /* 0V DVB-S / -T standby / passive antenna */
+ SEC_VOLTAGE_5, /* 5V DVB-T active antenna */
+ SEC_VOLTAGE_12 /* 12V DVB-S DiSEqC */
} fe_sec_voltage_t;
I know it is ugly, because:
- the values are not ordered correctly
- "SEC" has nothing to do with DVB-T
But I don't think it is useful to invent an ioctl which does the same
thing as FE_SET_VOLTAGE but for DVB-T only and with a different name.
DVB_API_VERSION_MINOR should probably be incremented, too.
Does anyone have a better proposal?
Regards,
Andreas
