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From: Takashi Iwai <>
Subject: [alsa-devel] [PATCH] ALSA: uapi: Drop unneeded typedefs
Date: Fri, 20 Dec 2019 17:15:55 +0100
Message-ID: <> (raw)

We kept some typedefs in uapi/sound/*.h so that the programs in
alsa-tools can be built.  Now that alsa-lib takes these and applies
the workarounds in its own, we don't need these typedefs any longer in
the kernel uapi side.  Let's drop them.

Signed-off-by: Takashi Iwai <>
 include/uapi/sound/emu10k1.h | 10 ----------
 include/uapi/sound/hdsp.h    |  9 ---------
 include/uapi/sound/hdspm.h   |  8 --------
 3 files changed, 27 deletions(-)

diff --git a/include/uapi/sound/emu10k1.h b/include/uapi/sound/emu10k1.h
index c1150e4d0231..6bcd76f64c1c 100644
--- a/include/uapi/sound/emu10k1.h
+++ b/include/uapi/sound/emu10k1.h
@@ -382,14 +382,4 @@ struct snd_emu10k1_fx8010_pcm_rec {
 #define SNDRV_EMU10K1_IOCTL_SINGLE_STEP	_IOW ('H', 0x83, int)
 #define SNDRV_EMU10K1_IOCTL_DBG_READ	_IOR ('H', 0x84, int)
-#ifndef __KERNEL__
-/* typedefs for compatibility to user-space */
-typedef struct snd_emu10k1_fx8010_info emu10k1_fx8010_info_t;
-typedef struct snd_emu10k1_fx8010_control_gpr emu10k1_fx8010_control_gpr_t;
-typedef struct snd_emu10k1_fx8010_code emu10k1_fx8010_code_t;
-typedef struct snd_emu10k1_fx8010_tram emu10k1_fx8010_tram_t;
-typedef struct snd_emu10k1_fx8010_pcm_rec emu10k1_fx8010_pcm_t;
-typedef struct emu10k1_ctl_elem_id emu10k1_ctl_elem_id_t;
 #endif /* _UAPI__SOUND_EMU10K1_H */
diff --git a/include/uapi/sound/hdsp.h b/include/uapi/sound/hdsp.h
index 88c92a3fb477..7ac2d3f2a9b3 100644
--- a/include/uapi/sound/hdsp.h
+++ b/include/uapi/sound/hdsp.h
@@ -97,13 +97,4 @@ struct hdsp_9632_aeb {
 #define SNDRV_HDSP_IOCTL_GET_9632_AEB _IOR('H', 0x45, struct hdsp_9632_aeb)
-/* typedefs for compatibility to user-space */
-typedef enum HDSP_IO_Type HDSP_IO_Type;
-typedef struct hdsp_peak_rms hdsp_peak_rms_t;
-typedef struct hdsp_config_info hdsp_config_info_t;
-typedef struct hdsp_firmware hdsp_firmware_t;
-typedef struct hdsp_version hdsp_version_t;
-typedef struct hdsp_mixer hdsp_mixer_t;
-typedef struct hdsp_9632_aeb hdsp_9632_aeb_t;
 #endif /* __SOUND_HDSP_H */
diff --git a/include/uapi/sound/hdspm.h b/include/uapi/sound/hdspm.h
index 2d91f90eb5e1..3fbfd9dc5f51 100644
--- a/include/uapi/sound/hdspm.h
+++ b/include/uapi/sound/hdspm.h
@@ -219,12 +219,4 @@ struct hdspm_mixer_ioctl {
 /* use indirect access due to the limit of ioctl bit size */
 #define SNDRV_HDSPM_IOCTL_GET_MIXER _IOR('H', 0x44, struct hdspm_mixer_ioctl)
-/* typedefs for compatibility to user-space */
-typedef struct hdspm_peak_rms hdspm_peak_rms_t;
-typedef struct hdspm_config_info hdspm_config_info_t;
-typedef struct hdspm_version hdspm_version_t;
-typedef struct hdspm_channelfader snd_hdspm_channelfader_t;
-typedef struct hdspm_mixer hdspm_mixer_t;

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