r0 = openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080), 0x0)
r1 = fcntl$dupfd(r0, 0x0, r0)
ioctl$SNDRV_SEQ_IOCTL_SUBSCRIBE_PORT(r1, 0x40505330, &(0x7f0000000000)={{0x6a}})