amixer: skip showing asoc tlv byte controls

ASoC TLV Byte controls are very large size controls so we should add new
options for these. So skip dumping contents for these.

$amixer -c0 cget numid=16
numid=16,iface=MIXER,name='mdl params'
  ; type=BYTES,access=-----RW-,values=30336
  ; ASoC TLV Byte control, skipping bytes dump

Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/amixer/amixer.c b/amixer/amixer.c
index db1849333da3c09d8661dd0d4d7adb6c953230e5..f9b09cb54276dbb88c5abc6b197727e8fd58b8eb 100644 (file)
--- a/amixer/amixer.c
+++ b/amixer/amixer.c
@@ -682,6 +682,14 @@ static int show_control(const char *space, snd_hctl_elem_t *elem,
              __skip_read:
                if (!snd_ctl_elem_info_is_tlv_readable(info))
                        goto __skip_tlv;
+               /* skip ASoC ext bytes controls that may have huge binary TLV data */
+               if (type == SND_CTL_ELEM_TYPE_BYTES &&
+                               !snd_ctl_elem_info_is_readable(info) &&
+                               !snd_ctl_elem_info_is_writable(info)) {
+                       printf("%s; ASoC TLV Byte control, skipping bytes dump\n", space);
+                       goto __skip_tlv;
+               }
+
                tlv = malloc(4096);
                if ((err = snd_hctl_elem_tlv_read(elem, tlv, 4096)) < 0) {
                        error("Control %s element TLV read error: %s\n", card, snd_strerror(err));