A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-30 11:41:38 -04:00
Code Issues Projects Releases Packages Wiki Activity

watchdog: Add support for WDIOC_GETTIMELEFT IOCTL in watchdog core

Browse source 
This patch adds support for WDIOC_GETTIMELEFT IOCTL in watchdog core. So, there
is another function pointer added to struct watchdog_ops, which can be passed by
drivers to support this IOCTL.

Related documentation is updated too.

Signed-off-by: Viresh Kumar <[email protected]>
Signed-off-by: Linus Walleij <[email protected]>
Signed-off-by: Wim Van Sebroeck <[email protected]>
This commit is contained in:
Viresh Kumar 2012-03-16 09:14:00 +01:00 • committed by Wim Van Sebroeck
commit fd7b673c92
4 changed files with 14 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

4
Documentation/watchdog/convert_drivers_to_kernel_api.txt
View file

@ -59,6 +59,10 @@ Here is a overview of the functions and probably needed actions:
WDIOC_GETTIMEOUT:
No preparations needed
WDIOC_GETTIMELEFT:
It needs get_timeleft() callback to be defined. Otherwise it
will return EOPNOTSUPP
Other IOCTLs can be served using the ioctl-callback. Note that this is mainly
intended for porting old drivers; new drivers should not invent private IOCTLs.
Private IOCTLs are processed first. When the callback returns with

4
Documentation/watchdog/watchdog-kernel-api.txt
View file

@ -1,6 +1,6 @@
The Linux WatchDog Timer Driver Core kernel API.
===============================================
Last reviewed: 29-Nov-2011
Last reviewed: 16-Mar-2012
Wim Van Sebroeck <[email protected]>
@ -77,6 +77,7 @@ struct watchdog_ops {
int (*ping)(struct watchdog_device *);
unsigned int (*status)(struct watchdog_device *);
int (*set_timeout)(struct watchdog_device *, unsigned int);
unsigned int (*get_timeleft)(struct watchdog_device *);
long (*ioctl)(struct watchdog_device *, unsigned int, unsigned long);
};
@ -123,6 +124,7 @@ they are supported. These optional routines/operations are:
because the watchdog does not necessarily has a 1 second resolution).
(Note: the WDIOF_SETTIMEOUT needs to be set in the options field of the
watchdog's info structure).
* get_timeleft: this routines returns the time that's left before a reset.
* ioctl: if this routine is present then it will be called first before we do
our own internal ioctl call handling. This routine should return -ENOIOCTLCMD
if a command is not supported. The parameters that are passed to the ioctl