r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f00000002c0), 0x0, 0x0)
read(r0, &(0x7f0000000140)=""/96, 0x60)
ioctl$TIOCPKT(r0, 0x5420, &(0x7f0000000040)=0x5)
ioctl$TCSETSW(r0, 0x5408, &(0x7f0000000100)={0x0, 0x0, 0x0, 0x0, 0x0, "94fcd200000800"})