[alsa-devel] [PATCH/alsa-lib] amixer: fix 'cset' operation to set several channels
For an enumerated element with several channels, when given comma-separated string values, 'cset' operation sets these values just to the first channel, instead of corresponding channels.
This commit adds missing-increment to fix this bug.
Signed-off-by: Takashi Sakamoto o-takashi@sakamocchi.jp --- amixer/amixer.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/amixer/amixer.c b/amixer/amixer.c index 36c92eb..e9fe735 100644 --- a/amixer/amixer.c +++ b/amixer/amixer.c @@ -1290,8 +1290,10 @@ static int sset_enum(snd_mixer_elem_t *elem, unsigned int argc, char **argv) if (snd_mixer_selem_set_enum_item(elem, item++, ival) >= 0) check_flag = 1; /* skip separators */ - while (*ptr == ',' || isspace(*ptr)) + while (*ptr == ',' || isspace(*ptr)) { ptr++; + chn++; + } } } return check_flag;
[PATCH/alsa-lib] amixer: fix 'cset' operation to set several channels
Oops. This patch is for alsa-utils, sorry...
On Apr 06 2015 11:30, Takashi Sakamoto wrote:
For an enumerated element with several channels, when given comma-separated string values, 'cset' operation sets these values just to the first channel, instead of corresponding channels.
This commit adds missing-increment to fix this bug.
Signed-off-by: Takashi Sakamoto o-takashi@sakamocchi.jp
amixer/amixer.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/amixer/amixer.c b/amixer/amixer.c index 36c92eb..e9fe735 100644 --- a/amixer/amixer.c +++ b/amixer/amixer.c @@ -1290,8 +1290,10 @@ static int sset_enum(snd_mixer_elem_t *elem, unsigned int argc, char **argv) if (snd_mixer_selem_set_enum_item(elem, item++, ival) >= 0) check_flag = 1; /* skip separators */
while (*ptr == ',' || isspace(*ptr))
while (*ptr == ',' || isspace(*ptr)) { ptr++;chn++;}
At Mon, 6 Apr 2015 11:30:50 +0900, Takashi Sakamoto wrote:
For an enumerated element with several channels, when given comma-separated string values, 'cset' operation sets these values just to the first channel, instead of corresponding channels.
This commit adds missing-increment to fix this bug.
Signed-off-by: Takashi Sakamoto o-takashi@sakamocchi.jp
Did you really test this patch...?
amixer.c: In function ‘sset_enum’: amixer.c:1295:5: error: ‘chn’ undeclared (first use in this function)
Takashi
amixer/amixer.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/amixer/amixer.c b/amixer/amixer.c index 36c92eb..e9fe735 100644 --- a/amixer/amixer.c +++ b/amixer/amixer.c @@ -1290,8 +1290,10 @@ static int sset_enum(snd_mixer_elem_t *elem, unsigned int argc, char **argv) if (snd_mixer_selem_set_enum_item(elem, item++, ival) >= 0) check_flag = 1; /* skip separators */
while (*ptr == ',' || isspace(*ptr))
while (*ptr == ',' || isspace(*ptr)) { ptr++;chn++;}-- 2.1.0
On Apr 06 2015 16:13, Takashi Iwai wrote:
At Mon, 6 Apr 2015 11:30:50 +0900, Takashi Sakamoto wrote:
For an enumerated element with several channels, when given comma-separated string values, 'cset' operation sets these values just to the first channel, instead of corresponding channels.
This commit adds missing-increment to fix this bug.
Signed-off-by: Takashi Sakamoto o-takashi@sakamocchi.jp
Did you really test this patch...?
amixer.c: In function ‘sset_enum’: amixer.c:1295:5: error: ‘chn’ undeclared (first use in this function)
I workd on 6f9835f. After testing, rebase to current master. Then I missed 1a19ec1. I should have compile again in this tree. (missing enough caution...)
Well, I think the 1a19ec1 still includes a bug. It cannot parse this option correctly.
$ amixer sset enum-element-13,1019 A,B,,D
In this case, no values should be set to the third channel of the element. But current implementation set D to the channel and the last channel is not changed.
I'll post a new patch, later.
Thanks for your indication.
Takashi Sakamoto
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Takashi Iwai -
Takashi Sakamoto