r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0)
ioctl$TCXONC(r0, 0x540a, 0x0)
r1 = openat$sr(0xffffffffffffff9c, &(0x7f0000000440), 0x4840, 0x0)
ppoll(&(0x7f00000001c0)=[{r0}, {r1, 0x4a4}], 0x2, 0x0, 0x0, 0x0)