path: root/Documentation
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authorLinus Torvalds <torvalds@g5.osdl.org>2006-04-14 17:08:41 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-04-14 17:08:41 -0700
commit11f16971ceeb0f442e58f318b0cfde8eb35296bb (patch)
tree857d0975f65dcc81f7e0fe8ceabad183cd97e763 /Documentation
parentMerge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6 (diff)
parent[PATCH] i2c-parport: Make type parameter mandatory (diff)
Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/i2c-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/i2c-2.6: (78 commits) commit e97b81ddbb8b8c72b85330ac4a454a4513dcba8a Author: Mark M. Hoffman <mhoffman@lightlink.com> Date: Thu Mar 23 16:50:25 2006 +0100 [PATCH] i2c-parport: Make type parameter mandatory This patch forces the user to specify what type of adapter is present when loading i2c-parport or i2c-parport-light. If none is specified, the driver init simply fails - instead of assuming adapter type 0. This alleviates the sometimes lengthy boot time delays which can be caused by accidentally building one of these into a kernel along with several i2c slave drivers that have lengthy probe routines (e.g. hwmon drivers). Kconfig and documentation updated accordingly. Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com> Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> ...
Diffstat (limited to 'Documentation')
1 files changed, 10 insertions, 6 deletions
diff --git a/Documentation/i2c/busses/i2c-parport b/Documentation/i2c/busses/i2c-parport
index d9f23c0763f1..77b995dfca22 100644
--- a/Documentation/i2c/busses/i2c-parport
+++ b/Documentation/i2c/busses/i2c-parport
@@ -12,18 +12,22 @@ meant as a replacement for the older, individual drivers:
teletext adapters)
It currently supports the following devices:
- * Philips adapter
- * home brew teletext adapter
- * Velleman K8000 adapter
- * ELV adapter
- * Analog Devices evaluation boards (ADM1025, ADM1030, ADM1031, ADM1032)
- * Barco LPT->DVI (K5800236) adapter
+ * (type=0) Philips adapter
+ * (type=1) home brew teletext adapter
+ * (type=2) Velleman K8000 adapter
+ * (type=3) ELV adapter
+ * (type=4) Analog Devices ADM1032 evaluation board
+ * (type=5) Analog Devices evaluation boards: ADM1025, ADM1030, ADM1031
+ * (type=6) Barco LPT->DVI (K5800236) adapter
These devices use different pinout configurations, so you have to tell
the driver what you have, using the type module parameter. There is no
way to autodetect the devices. Support for different pinout configurations
can be easily added when needed.
+Earlier kernels defaulted to type=0 (Philips). But now, if the type
+parameter is missing, the driver will simply fail to initialize.
Building your own adapter