diff mbox

tea5764: Fix module parameter permissions

Message ID 201107081100.37406.jdelvare@suse.de (mailing list archive)
State Superseded, archived
Headers

Commit Message

Jean Delvare July 8, 2011, 9 a.m. UTC 
  The third parameter of module_param is supposed to represent sysfs
file permissions. A value of "1" leads to the following:

$ ls -l /sys/module/radio_tea5764/parameters/
total 0
---------x 1 root root 4096 Jul  8 09:17 use_xtal

I am changing it to "0" to align with the other module parameters in
this driver.

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Cc: Mauro Carvalho Chehab <mchehab@infradead.org>
Cc: Fabio Belavenuto <belavenuto@gmail.com>
---
 drivers/media/radio/radio-tea5764.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Andy Walls July 8, 2011, 10:34 a.m. UTC | #1 
Jean Delvare <jdelvare@suse.de> wrote:

>The third parameter of module_param is supposed to represent sysfs
>file permissions. A value of "1" leads to the following:
>
>$ ls -l /sys/module/radio_tea5764/parameters/
>total 0
>---------x 1 root root 4096 Jul  8 09:17 use_xtal
>
>I am changing it to "0" to align with the other module parameters in
>this driver.
>
>Signed-off-by: Jean Delvare <jdelvare@suse.de>
>Cc: Mauro Carvalho Chehab <mchehab@infradead.org>
>Cc: Fabio Belavenuto <belavenuto@gmail.com>
>---
> drivers/media/radio/radio-tea5764.c |    2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
>--- linux-3.0-rc6.orig/drivers/media/radio/radio-tea5764.c	2011-05-20
>10:41:19.000000000 +0200
>+++ linux-3.0-rc6/drivers/media/radio/radio-tea5764.c	2011-07-08
>09:15:16.000000000 +0200
>@@ -596,7 +596,7 @@ MODULE_AUTHOR(DRIVER_AUTHOR);
> MODULE_DESCRIPTION(DRIVER_DESC);
> MODULE_LICENSE("GPL");
> 
>-module_param(use_xtal, int, 1);
>+module_param(use_xtal, int, 0);
> MODULE_PARM_DESC(use_xtal, "Chip have a xtal connected in board");
> module_param(radio_nr, int, 0);
> MODULE_PARM_DESC(radio_nr, "video4linux device number to use");
>
>-- 
>Jean Delvare
>Suse L3
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To whomever might know:

Was the intent of the "1" to set the default value of the parameter?

Regards,
Andy
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Jean Delvare July 11, 2011, 11:54 a.m. UTC | #2 
Hi Andy,

On Friday 08 July 2011 12:34:38 pm Andy Walls wrote:
> Jean Delvare <jdelvare@suse.de> wrote:
> >The third parameter of module_param is supposed to represent sysfs
> >file permissions. A value of "1" leads to the following:
> >
> >$ ls -l /sys/module/radio_tea5764/parameters/
> >total 0
> >---------x 1 root root 4096 Jul  8 09:17 use_xtal
> >
> >I am changing it to "0" to align with the other module parameters in
> >this driver.
> >
> >Signed-off-by: Jean Delvare <jdelvare@suse.de>
> >Cc: Mauro Carvalho Chehab <mchehab@infradead.org>
> >Cc: Fabio Belavenuto <belavenuto@gmail.com>
> >---
> > drivers/media/radio/radio-tea5764.c |    2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
> >
> >---
> > linux-3.0-rc6.orig/drivers/media/radio/radio-tea5764.c	2011-05-20
> > 10:41:19.000000000 +0200
> >+++ linux-3.0-rc6/drivers/media/radio/radio-tea5764.c	2011-07-08
> >09:15:16.000000000 +0200
> >@@ -596,7 +596,7 @@ MODULE_AUTHOR(DRIVER_AUTHOR);
> > MODULE_DESCRIPTION(DRIVER_DESC);
> > MODULE_LICENSE("GPL");
> >
> >-module_param(use_xtal, int, 1);
> >+module_param(use_xtal, int, 0);
> > MODULE_PARM_DESC(use_xtal, "Chip have a xtal connected in board");
> > module_param(radio_nr, int, 0);
> > MODULE_PARM_DESC(radio_nr, "video4linux device number to use");
> 
> To whomever might know:
> 
> Was the intent of the "1" to set the default value of the parameter?

My guess is yes, and as a matter of fact 1 is indeed the default value 
of use_xtal. Only the author of the code (Fabio Belavenuto) could tell 
for sure, but he seems to be no longer involved so I wouldn't wait for 
him.
Fabio Belavenuto July 11, 2011, 12:25 p.m. UTC | #3 
Hi,

I'm the author. Sorry for my bad english, I'm from Brazil. :D

Yes, the intent of the "1" is to set the default value, in case
compile built-in.

I like the module to be generic, decided to choose enabled by default.

Fábio

2011/7/11 Jean Delvare <jdelvare@suse.de>:
> Hi Andy,
>
> On Friday 08 July 2011 12:34:38 pm Andy Walls wrote:
>> Jean Delvare <jdelvare@suse.de> wrote:
>> >The third parameter of module_param is supposed to represent sysfs
>> >file permissions. A value of "1" leads to the following:
>> >
>> >$ ls -l /sys/module/radio_tea5764/parameters/
>> >total 0
>> >---------x 1 root root 4096 Jul  8 09:17 use_xtal
>> >
>> >I am changing it to "0" to align with the other module parameters in
>> >this driver.
>> >
>> >Signed-off-by: Jean Delvare <jdelvare@suse.de>
>> >Cc: Mauro Carvalho Chehab <mchehab@infradead.org>
>> >Cc: Fabio Belavenuto <belavenuto@gmail.com>
>> >---
>> > drivers/media/radio/radio-tea5764.c |    2 +-
>> > 1 file changed, 1 insertion(+), 1 deletion(-)
>> >
>> >---
>> > linux-3.0-rc6.orig/drivers/media/radio/radio-tea5764.c      2011-05-20
>> > 10:41:19.000000000 +0200
>> >+++ linux-3.0-rc6/drivers/media/radio/radio-tea5764.c        2011-07-08
>> >09:15:16.000000000 +0200
>> >@@ -596,7 +596,7 @@ MODULE_AUTHOR(DRIVER_AUTHOR);
>> > MODULE_DESCRIPTION(DRIVER_DESC);
>> > MODULE_LICENSE("GPL");
>> >
>> >-module_param(use_xtal, int, 1);
>> >+module_param(use_xtal, int, 0);
>> > MODULE_PARM_DESC(use_xtal, "Chip have a xtal connected in board");
>> > module_param(radio_nr, int, 0);
>> > MODULE_PARM_DESC(radio_nr, "video4linux device number to use");
>>
>> To whomever might know:
>>
>> Was the intent of the "1" to set the default value of the parameter?
>
> My guess is yes, and as a matter of fact 1 is indeed the default value
> of use_xtal. Only the author of the code (Fabio Belavenuto) could tell
> for sure, but he seems to be no longer involved so I wouldn't wait for
> him.
>
> --
> Jean Delvare
> Suse L3
>
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Mauro Carvalho Chehab July 13, 2011, 2:35 p.m. UTC | #4 
Em 11-07-2011 09:25, Fabio Belavenuto escreveu:
> Hi,
> 
> I'm the author. Sorry for my bad english, I'm from Brazil. :D
> 
> Yes, the intent of the "1" is to set the default value, in case
> compile built-in.
> 
> I like the module to be generic, decided to choose enabled by default.
> 
> Fábio
> 
> 2011/7/11 Jean Delvare <jdelvare@suse.de>:
>> Hi Andy,
>>
>> On Friday 08 July 2011 12:34:38 pm Andy Walls wrote:
>>> Jean Delvare <jdelvare@suse.de> wrote:
>>>> The third parameter of module_param is supposed to represent sysfs
>>>> file permissions. A value of "1" leads to the following:
>>>>
>>>> $ ls -l /sys/module/radio_tea5764/parameters/
>>>> total 0
>>>> ---------x 1 root root 4096 Jul  8 09:17 use_xtal
>>>>
>>>> I am changing it to "0" to align with the other module parameters in
>>>> this driver.
>>>>
>>>> Signed-off-by: Jean Delvare <jdelvare@suse.de>
>>>> Cc: Mauro Carvalho Chehab <mchehab@infradead.org>
>>>> Cc: Fabio Belavenuto <belavenuto@gmail.com>
>>>> ---
>>>> drivers/media/radio/radio-tea5764.c |    2 +-
>>>> 1 file changed, 1 insertion(+), 1 deletion(-)
>>>>
>>>> ---
>>>> linux-3.0-rc6.orig/drivers/media/radio/radio-tea5764.c      2011-05-20
>>>> 10:41:19.000000000 +0200
>>>> +++ linux-3.0-rc6/drivers/media/radio/radio-tea5764.c        2011-07-08
>>>> 09:15:16.000000000 +0200
>>>> @@ -596,7 +596,7 @@ MODULE_AUTHOR(DRIVER_AUTHOR);
>>>> MODULE_DESCRIPTION(DRIVER_DESC);
>>>> MODULE_LICENSE("GPL");
>>>>
>>>> -module_param(use_xtal, int, 1);
>>>> +module_param(use_xtal, int, 0);
>>>> MODULE_PARM_DESC(use_xtal, "Chip have a xtal connected in board");
>>>> module_param(radio_nr, int, 0);
>>>> MODULE_PARM_DESC(radio_nr, "video4linux device number to use");
>>>
>>> To whomever might know:
>>>
>>> Was the intent of the "1" to set the default value of the parameter?
>>
>> My guess is yes, and as a matter of fact 1 is indeed the default value
>> of use_xtal. Only the author of the code (Fabio Belavenuto) could tell
>> for sure, but he seems to be no longer involved so I wouldn't wait for
>> him.

The value there is not the default value, but the permissions. From what
I understand, the xtal frequency should be set at boot time, so setting
it to 000 seems to do the work. So, I'm applying Jean's patch.

>>
>> --
>> Jean Delvare
>> Suse L3
>>
> --
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diff mbox

Patch

--- linux-3.0-rc6.orig/drivers/media/radio/radio-tea5764.c	2011-05-20 10:41:19.000000000 +0200
+++ linux-3.0-rc6/drivers/media/radio/radio-tea5764.c	2011-07-08 09:15:16.000000000 +0200
@@ -596,7 +596,7 @@  MODULE_AUTHOR(DRIVER_AUTHOR);
 MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_LICENSE("GPL");
 
-module_param(use_xtal, int, 1);
+module_param(use_xtal, int, 0);
 MODULE_PARM_DESC(use_xtal, "Chip have a xtal connected in board");
 module_param(radio_nr, int, 0);
 MODULE_PARM_DESC(radio_nr, "video4linux device number to use");