Process 74 attached - interrupt to quit
     0.000000 select(31, [4 5 6 7 8 9 10 11 12 15 16 17 18 19 20 21 22 23 24 25 26 27 28], [], [], NULL) = 1 (in [4])
     2.379592 ioctl(4, FIONREAD, [14])  = 0
     0.006815 read(4, "\r\n+CIEV: 1,5\r\n", 14) = 14
 | 00000  0d 0a 2b 43 49 45 56 3a  20 31 2c 35 0d 0a        ..+CIEV:  1,5..   |
     0.007447 select(31, [4 5 6 7 8 9 10 11 12 15 16 17 18 19 20 21 22 23 24 25 26 27 28], [17], [], NULL) = 1 (out [17])
     0.006843 write(17, "\x01\x07\x04\x00\x00\x00\x00\x00\x05\x00\x00\x00", 12) = 12
 | 00000  01 07 04 00 00 00 00 00  05 00 00 00              ........ ....     |
     0.068131 select(31, [4 5 6 7 8 9 10 11 12 15 16 17 18 19 20 21 22 23 24 25 26 27 28], [], [], NULL) = 1 (in [18])
     0.930112 ioctl(18, FIONREAD, [9])  = 0
     0.006232 read(18, "\x0e\x82\x01\x00\x00\x00\x00\x00\x01", 9) = 9
 | 00000  0e 82 01 00 00 00 00 00  01                       ........ .        |
     0.006950 times({tms_utime=54, tms_stime=112, tms_cutime=12, tms_cstime=5}) = 492384
     0.006891 times({tms_utime=54, tms_stime=112, tms_cutime=12, tms_cstime=5}) = 492385
     0.006177 times({tms_utime=54, tms_stime=113, tms_cutime=12, tms_cstime=5}) = 492386
     0.006231 select(31, [4 5 6 7 8 9 10 11 12 15 16 17 18 19 20 21 22 23 24 25 26 27 28], [4], [], {14, 980000}) = 1 (out [4], left {14, 980000})
     0.006884 write(4, "AT+CMUT=1\r", 10) = 10
 | 00000  41 54 2b 43 4d 55 54 3d  31 0d                    AT+CMUT= 1.       |
     0.007067 times({tms_utime=54, tms_stime=114, tms_cutime=12, tms_cstime=5}) = 492388
     0.006680 times({tms_utime=54, tms_stime=114, tms_cutime=12, tms_cstime=5}) = 492388
     0.006196 select(31, [4 5 6 7 8 9 10 11 12 15 16 17 18 19 20 21 22 23 24 25 26 27 28], [], [], {14, 960000}) = 1 (in [4], left {14, 920000})
     0.041388 ioctl(4, FIONREAD, [6])   = 0
     0.006416 read(4, "\r\nOK\r\n", 6)  = 6
 | 00000  0d 0a 4f 4b 0d 0a                                 ..OK..            |
     0.006839 select(31, [4 5 6 7 8 9 10 11 12 15 16 17 18 19 20 21 22 23 24 25 26 27 28], [18], [], NULL) = 1 (out [18])
     0.007191 write(18, "\x0e\x82\x04\x00\x00\x00\x00\x00\x00\x00\x00\x00", 12) = 12
 | 00000  0e 82 04 00 00 00 00 00  00 00 00 00              ........ ....     |
     0.044261 select(31, [4 5 6 7 8 9 10 11 12 15 16 17 18 19 20 21 22 23 24 25 26 27 28], [], [], NULL