diff --git a/drivers/staging/comedi/drivers/pcl726.c b/drivers/staging/comedi/drivers/pcl726.c
index 492d289..a9ef1df 100644
--- a/drivers/staging/comedi/drivers/pcl726.c
+++ b/drivers/staging/comedi/drivers/pcl726.c
@@ -123,7 +123,6 @@
 		.name		= "pcl726",
 		.n_aochan	= 6,
 		.num_of_ranges	= 6,
-		.IRQbits	= 0x0000,
 		.io_range	= PCL726_SIZE,
 		.have_dio	= 1,
 		.di_hi		= PCL726_DI_HI,
@@ -135,7 +134,6 @@
 		.name		= "pcl727",
 		.n_aochan	= 12,
 		.num_of_ranges	= 4,
-		.IRQbits	= 0x0000,
 		.io_range	= PCL727_SIZE,
 		.have_dio	= 1,
 		.di_hi		= PCL727_DI_HI,
@@ -147,13 +145,7 @@
 		.name		= "pcl728",
 		.n_aochan	= 2,
 		.num_of_ranges	= 6,
-		.IRQbits	= 0x0000,
 		.io_range	= PCL728_SIZE,
-		.have_dio	= 0,
-		.di_hi		= 0,
-		.di_lo		= 0,
-		.do_hi		= 0,
-		.do_lo		= 0,
 		.range_type_list = &rangelist_728[0],
 	}, {
 		.name		= "acl6126",
@@ -171,13 +163,7 @@
 		.name		= "acl6128",
 		.n_aochan	= 2,
 		.num_of_ranges	= 6,
-		.IRQbits	= 0x0000,
 		.io_range	= PCL728_SIZE,
-		.have_dio	= 0,
-		.di_hi		= 0,
-		.di_lo		= 0,
-		.do_hi		= 0,
-		.do_lo		= 0,
 		.range_type_list = &rangelist_728[0],
 	},
 };