ALSA: Replace the magic number 44 with const
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>
diff --git a/include/uapi/sound/asound.h b/include/uapi/sound/asound.h
index e3983d5..041203f 100644
--- a/include/uapi/sound/asound.h
+++ b/include/uapi/sound/asound.h
@@ -817,6 +817,8 @@
#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 */
