Change SNDRV_PCM_VERSION, SNDRV_RAWMIDI_VERSION and SNDRV_TIMER_VERSION to indicate the addition of the time64 version of the mmap interface and these ioctl commands:
SNDRV_PCM_IOCTL_SYNC SNDRV_RAWMIDI_IOCTL_STATUS SNDRV_PCM_IOCTL_STATUS SNDRV_PCM_IOCTL_STATUS_EXT SNDRV_TIMER_IOCTL_TREAD SNDRV_TIMER_IOCTL_STATUS
32-bit applications built with 64-bit time_t require both the headers and the running kernel to support at least the new API version. When built with earlier kernel headers, some of these may not work correctly, so applications are encouraged to fail compilation like
#if SNDRV_PCM_VERSION < SNDRV_PROTOCOL_VERSION(2, 0, 15) extern int __fail_build_for_time_64[sizeof(long) - sizeof(time_t)]; #endif
or provide their own updated copy of the header file. At runtime, the interface is unchanged for 32-bit time_t, but new kernels are required to work with user compiled with 64-bit time_t.
A runtime check can be used to detect old kernel versions and warn about those.
Signed-off-by: Arnd Bergmann arnd@arndb.de --- include/uapi/sound/asound.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/include/uapi/sound/asound.h b/include/uapi/sound/asound.h index df9983e7ead5..e6a958b8aff1 100644 --- a/include/uapi/sound/asound.h +++ b/include/uapi/sound/asound.h @@ -156,7 +156,7 @@ struct snd_hwdep_dsp_image { * * *****************************************************************************/
-#define SNDRV_PCM_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 14) +#define SNDRV_PCM_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 15)
typedef unsigned long snd_pcm_uframes_t; typedef signed long snd_pcm_sframes_t; @@ -710,7 +710,7 @@ enum { * Raw MIDI section - /dev/snd/midi?? */
-#define SNDRV_RAWMIDI_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 0) +#define SNDRV_RAWMIDI_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 1)
enum { SNDRV_RAWMIDI_STREAM_OUTPUT = 0, @@ -766,7 +766,7 @@ struct snd_rawmidi_status { * Timer section - /dev/snd/timer */
-#define SNDRV_TIMER_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 6) +#define SNDRV_TIMER_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 7)
enum { SNDRV_TIMER_CLASS_NONE = -1,