V4L/DVB (10894): ISA radio drivers: improve kernel log message

It's much nicer if the log message tells you which io ports are possible,
rather than having to run modinfo or look it up in the source or manual.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/radio/radio-aimslab.c b/drivers/media/radio/radio-aimslab.c
index ee204fd..a99227f 100644
--- a/drivers/media/radio/radio-aimslab.c
+++ b/drivers/media/radio/radio-aimslab.c
@@ -398,7 +398,7 @@
 	rt->io = io;
 
 	if (rt->io == -1) {
-		v4l2_err(v4l2_dev, "you must set an I/O address with io=0x???\n");
+		v4l2_err(v4l2_dev, "you must set an I/O address with io=0x20f or 0x30f\n");
 		return -EINVAL;
 	}
 
diff --git a/drivers/media/radio/radio-aztech.c b/drivers/media/radio/radio-aztech.c
index 35f6f40..186f3ba 100644
--- a/drivers/media/radio/radio-aztech.c
+++ b/drivers/media/radio/radio-aztech.c
@@ -361,7 +361,7 @@
 	az->io = io;
 
 	if (az->io == -1) {
-		v4l2_err(v4l2_dev, "you must set an I/O address with io=0x???\n");
+		v4l2_err(v4l2_dev, "you must set an I/O address with io=0x350 or 0x358\n");
 		return -EINVAL;
 	}
 
diff --git a/drivers/media/radio/radio-cadet.c b/drivers/media/radio/radio-cadet.c
index 7741f33..4627c5a 100644
--- a/drivers/media/radio/radio-cadet.c
+++ b/drivers/media/radio/radio-cadet.c
@@ -659,7 +659,8 @@
 	/* Else we bail out */
 	if (dev->io < 0) {
 #ifdef MODULE
-		v4l2_err(v4l2_dev, "you must set an I/O address with io=0x???\n");
+		v4l2_err(v4l2_dev, "you must set an I/O address with io=0x330, 0x332, 0x334,\n");
+		v4l2_err(v4l2_dev, "0x336, 0x338, 0x33a, 0x33c or 0x33e\n");
 #endif
 		goto fail;
 	}
diff --git a/drivers/media/radio/radio-terratec.c b/drivers/media/radio/radio-terratec.c
index 5a37e0d..a6243f7 100644
--- a/drivers/media/radio/radio-terratec.c
+++ b/drivers/media/radio/radio-terratec.c
@@ -375,7 +375,7 @@
 	strlcpy(v4l2_dev->name, "terratec", sizeof(v4l2_dev->name));
 	tt->io = io;
 	if (tt->io == -1) {
-		v4l2_err(v4l2_dev, "you must set an I/O address with io=0x???\n");
+		v4l2_err(v4l2_dev, "you must set an I/O address with io=0x590 or 0x591\n");
 		return -EINVAL;
 	}
 	if (!request_region(tt->io, 2, "terratec")) {
diff --git a/drivers/media/radio/radio-trust.c b/drivers/media/radio/radio-trust.c
index fe964b4..4aa3949 100644
--- a/drivers/media/radio/radio-trust.c
+++ b/drivers/media/radio/radio-trust.c
@@ -383,7 +383,7 @@
 	mutex_init(&tr->lock);
 
 	if (tr->io == -1) {
-		v4l2_err(v4l2_dev, "You must set an I/O address with io=0x???\n");
+		v4l2_err(v4l2_dev, "You must set an I/O address with io=0x0x350 or 0x358\n");
 		return -EINVAL;
 	}
 	if (!request_region(tr->io, 2, "Trust FM Radio")) {
diff --git a/drivers/media/radio/radio-zoltrix.c b/drivers/media/radio/radio-zoltrix.c
index 18dbaf16..f0ea281 100644
--- a/drivers/media/radio/radio-zoltrix.c
+++ b/drivers/media/radio/radio-zoltrix.c
@@ -413,7 +413,7 @@
 	strlcpy(v4l2_dev->name, "zoltrix", sizeof(v4l2_dev->name));
 	zol->io = io;
 	if (zol->io == -1) {
-		v4l2_err(v4l2_dev, "You must set an I/O address with io=0x???\n");
+		v4l2_err(v4l2_dev, "You must set an I/O address with io=0x20c or 0x30c\n");
 		return -EINVAL;
 	}
 	if (zol->io != 0x20c && zol->io != 0x30c) {