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ALSA: Replace the magic number 44 with const

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The char arrays with size 44 are for the name string of
snd_ctl_elem_id.  Define the constant and replace the raw numbers with
it for clarifying better.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai
2013-06-28 11:56:49 +02:00
parent 0c055b3413
commit 975cc02a90
6 changed files with 15 additions and 13 deletions
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2
include/uapi/sound/asound.h
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@@ -817,6 +817,8 @@ typedef int __bitwise snd_ctl_elem_iface_t;
#define SNDRV_CTL_POWER_D3hot (SNDRV_CTL_POWER_D3|0x0000) /* Off, with power */
#define SNDRV_CTL_POWER_D3cold (SNDRV_CTL_POWER_D3|0x0001) /* Off, without power */
#define SNDRV_CTL_ELEM_ID_NAME_MAXLEN 44
struct snd_ctl_elem_id {
unsigned int numid; /* numeric identifier, zero = invalid */
snd_ctl_elem_iface_t iface; /* interface identifier */