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Commit 8d7bda51 authored by Alexander Stein's avatar Alexander Stein Committed by Greg Kroah-Hartman
Browse files

w1: add family based automatic module loading 



This patch allows the 1-wire bus to autoload the corresponding module
for each slave being attached.
This works similar to bluetooth protocols.

Signed-off-by: default avatarAlexander Stein <alexander.stein@informatik.tu-chemnitz.de>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent a4b05d12

Documentation/w1/w1.generic

+2 −2
Original line number Diff line number Diff line
@@ -25,8 +25,8 @@ When a w1 master driver registers with the w1 subsystem, the following occurs: 
 - sysfs entries for that w1 master are created

 - the w1 bus is periodically searched for new slave devices



When a device is found on the bus, w1 core checks if driver for its family is

loaded. If so, the family driver is attached to the slave.

When a device is found on the bus, w1 core tries to load the driver for its family

and check if it is loaded. If so, the family driver is attached to the slave.

If there is no driver for the family, default one is assigned, which allows to perform

almost any kind of operations. Each logical operation is a transaction

in nature, which can contain several (two or one) low-level operations.

drivers/w1/slaves/w1_ds2408.c

+1 −0
Original line number Diff line number Diff line
@@ -22,6 +22,7 @@ 
MODULE_LICENSE("GPL");

MODULE_AUTHOR("Jean-Francois Dagenais <dagenaisj@sonatest.com>");

MODULE_DESCRIPTION("w1 family 29 driver for DS2408 8 Pin IO");

MODULE_ALIAS("w1-family-" __stringify(W1_FAMILY_DS2408));





#define W1_F29_RETRIES		3

drivers/w1/slaves/w1_ds2413.c

+1 −0
Original line number Diff line number Diff line
@@ -23,6 +23,7 @@ 
MODULE_LICENSE("GPL");

MODULE_AUTHOR("Mariusz Bialonczyk <manio@skyboo.net>");

MODULE_DESCRIPTION("w1 family 3a driver for DS2413 2 Pin IO");

MODULE_ALIAS("w1-family-" __stringify(W1_FAMILY_DS2413));



#define W1_F3A_RETRIES                     3

#define W1_F3A_FUNC_PIO_ACCESS_READ        0xF5

drivers/w1/slaves/w1_ds2423.c

+1 −0
Original line number Diff line number Diff line
@@ -164,3 +164,4 @@ module_exit(w1_f1d_exit); 
MODULE_LICENSE("GPL");

MODULE_AUTHOR("Mika Laitio <lamikr@pilppa.org>");

MODULE_DESCRIPTION("w1 family 1d driver for DS2423, 4 counters and 4kb ram");

MODULE_ALIAS("w1-family-" __stringify(W1_COUNTER_DS2423));

drivers/w1/slaves/w1_ds2431.c

+1 −0
Original line number Diff line number Diff line
@@ -310,3 +310,4 @@ module_exit(w1_f2d_fini); 
MODULE_LICENSE("GPL");

MODULE_AUTHOR("Bernhard Weirich <bernhard.weirich@riedel.net>");

MODULE_DESCRIPTION("w1 family 2d driver for DS2431, 1kb EEPROM");

MODULE_ALIAS("w1-family-" __stringify(W1_EEPROM_DS2431));