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alsa.6660
0018-ucm-Add-command-get-_file-to-get-the-confi...
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File 0018-ucm-Add-command-get-_file-to-get-the-config-file-nam.patch of Package alsa.6660
From e93d93a8cd37f94f119aba72ca05d7f92b648bcc Mon Sep 17 00:00:00 2001 From: Mengdong Lin <mengdong.lin@linux.intel.com> Date: Wed, 18 Jan 2017 11:53:42 +0800 Subject: [PATCH 18/43] ucm: Add command 'get _file' to get the config file name of the opened card After opening a card, this command can show the name of the actually loaded configuration file, either matches the card name or card long name. So developers can check if there is a device-sepcific configuration file available for a given card. Signed-off-by: Mengdong Lin <mengdong.lin@linux.intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> --- include/use-case.h | 1 + src/ucm/main.c | 14 ++++++++++++++ 2 files changed, 15 insertions(+) --- a/include/use-case.h +++ b/include/use-case.h @@ -230,6 +230,7 @@ int snd_use_case_get_list(snd_use_case_m * Known identifiers: * - NULL - return current card * - _verb - return current verb + * - _file - return configuration file loaded for current card * * - [=]{NAME}[/[{modifier}|{/device}][/{verb}]] * - value identifier {NAME} --- a/src/ucm/main.c +++ b/src/ucm/main.c @@ -1528,6 +1528,20 @@ int snd_use_case_get(snd_use_case_mgr_t goto __end; } err = 0; + } else if (strcmp(identifier, "_file") == 0) { + /* get the conf file name of the opened card */ + if ((uc_mgr->card_name == NULL) + || (uc_mgr->conf_file_name[0] == '\0')) { + err = -ENOENT; + goto __end; + } + *value = strndup(uc_mgr->conf_file_name, MAX_FILE); + if (*value == NULL) { + err = -ENOMEM; + goto __end; + } + err = 0; + } else if (identifier[0] == '_') { err = -ENOENT; goto __end;
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