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authorJanne Grunau <j@jannau.net>2009-09-01 19:15:39 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2009-09-12 12:20:03 -0300
commit4457ef1d6163533073efdebed82a049aad44e3b3 (patch)
treefaf7001493af74cd315b2f44ca8053debd5deb6e
parentf9089b0f9ed48be9c83101d1f1fded37b415a90e (diff)
downloadtalos-op-linux-4457ef1d6163533073efdebed82a049aad44e3b3.tar.gz
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V4L/DVB (12684): DVB: make DVB_MAX_ADAPTERS configurable
Support for more than 8 DVB devices is requested regularly so make it a kconfig variable instead of a header define. Values in the range 4-32 are tested. Signed-off-by: Janne Grunau <j@jannau.net> Signed-off-by: Michael Krufky <mkrufky@kernellabs.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
-rw-r--r--drivers/media/dvb/Kconfig13
-rw-r--r--drivers/media/dvb/dvb-core/dvbdev.h5
2 files changed, 18 insertions, 0 deletions
diff --git a/drivers/media/dvb/Kconfig b/drivers/media/dvb/Kconfig
index b0198691892a..1d0e4b1ef10c 100644
--- a/drivers/media/dvb/Kconfig
+++ b/drivers/media/dvb/Kconfig
@@ -2,6 +2,19 @@
# DVB device configuration
#
+config DVB_MAX_ADAPTERS
+ int "maximum number of DVB/ATSC adapters"
+ depends on DVB_CORE
+ default 8
+ range 1 255
+ help
+ Maximum number of DVB/ATSC adapters. Increasing this number
+ increases the memory consumption of the DVB subsystem even
+ if a much lower number of DVB/ATSC adapters is present.
+ Only values in the range 4-32 are tested.
+
+ If you are unsure about this, use the default value 8
+
config DVB_DYNAMIC_MINORS
bool "Dynamic DVB minor allocation"
depends on DVB_CORE
diff --git a/drivers/media/dvb/dvb-core/dvbdev.h b/drivers/media/dvb/dvb-core/dvbdev.h
index 487919bea7ae..895e2efca8a9 100644
--- a/drivers/media/dvb/dvb-core/dvbdev.h
+++ b/drivers/media/dvb/dvb-core/dvbdev.h
@@ -30,7 +30,12 @@
#define DVB_MAJOR 212
+#if defined(CONFIG_DVB_MAX_ADAPTERS) && CONFIG_DVB_MAX_ADAPTERS > 0
+#define DVB_MAX_ADAPTERS CONFIG_DVB_MAX_ADAPTERS
+#else
+#warning invalid CONFIG_DVB_MAX_ADAPTERS value
#define DVB_MAX_ADAPTERS 8
+#endif
#define DVB_UNSET (-1)
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