/* SPDX-License-Identifier: GPL-2.0 */
#define MAXPACK 50
#define MAXBUFFERMS 100
#define MAXSTRIDE 3

#define SSS (((MAXPACK*MAXBUFFERMS*MAXSTRIDE + 4096) / 4096) * 4096)
struct snd_usx2y_hwdep_pcm_shm {
        char playback[SSS];
        char capture0x8[SSS];
        char capture0xA[SSS];
        volatile int playback_iso_head;
        int playback_iso_start;
        struct {
                int     frame,
                        offset,
                        length;
        } captured_iso[128];
        volatile int captured_iso_head;
        volatile unsigned captured_iso_frames;
        int capture_iso_start;
};

int usx2y_hwdep_pcm_new(struct snd_card *card);