[LTP] [PATCH 2/2] device_drivers/uart01: Add uart01 test

[Cixi Geng]

Hi Cyril:
Here is my test result, in this test we can make sure that the baudrate is
needed in test.
the test hope help you

1. test ttyUSB0 in loopback use the same baudrate of Rx and Tx , test pass
with 5loop
root@Y50:/home/gcx/project/serialcheck# serialcheck  -b 115200 -d
/dev/ttyUSB0 -f binary -l 5 -m r -k
Needed 64 reads 0 writes loops 5 / 5
Failed to ioctl(,TIOCGICOUNT,)
gcx@Y50:~/project/serialcheck$ serialcheck -b 115200 -d /dev/ttyUSB0 -f
binary -m t -l 5 -k
Needed 0 reads 1 writes loops 5 / 5
Failed to ioctl(,TIOCGICOUNT,)
2. test ttyUSB0 in loopback use different baudrate ,Error at the fist loop
root@Y50:/home/gcx/project/serialcheck# serialcheck  -b 115200 -d
/dev/ttyUSB0 -f binary -l 5 -m r -k &
[1] 20764
gcx@Y50:~/project/serialcheck$ serialcheck -b 115200 -d /dev/ttyUSB0 -f
binary -m t -l 5 -k
Needed 0 reads 1 writes loops 5 / 5
Failed to ioctl(,TIOCGICOUNT,)
Needed 64 reads 0 writes Oh oh, inconsistency at pos 502 (0x1f6).

Original sample:
000001c0: 91 95 eb b6 82 e9 2a e6  16 5a da a3 c2 51 c4 c9
......*..Z...Q..
000001d0: c5 51 e1 b7 c9 76 67 d5  09 57 80 77 eb bf 6d d7
.Q...vg..W.w..m.
000001e0: 08 a6 7b fd 52 1b 12 8e  f2 50 c1 b7 a7 52 35 39
..{.R....P...R59
000001f0: 54 d4 50 96 49 55 35 30  33 52 80 89 8e a9 1e a2
T.P.IU503R......
00000200: 2c a5 0d 1a 26 f6 ea 77  a4 4a b9 69 34 17 cc bc
,...&..w.J.i4...
00000210: e2 6e 0c f9 e1 11 39 9f  fd ce 94 9e 19 30 f4 1c
.n....9......0..

Received sample:
000001c0: 91 95 eb b6 82 e9 2a e6  16 5a da a3 c2 51 c4 c9
......*..Z...Q..
000001d0: c5 51 e1 b7 c9 76 67 d5  09 57 80 77 eb bf 6d d7
.Q...vg..W.w..m.
000001e0: 08 a6 7b fd 52 1b 12 8e  f2 50 c1 b7 a7 52 35 39
..{.R....P...R59
000001f0: 54 d4 50 96 49 55 06 9a  92 01 89 8e a9 1e a2 2c
T.P.IU.........,
00000200: a5 0d 1a 26 f6 ea 77 a4  4a b9 69 34 17 cc bc e2
...&..w.J.i4....
00000210: 6e 0c f9 e1 11 39 9f fd  ce 94 9e 19 30 f4 1c 74
n....9......0..t
loops 1 / 5



Cyril Hrubis <chrubis@suse.cz> 于2020年4月2日周四 下午7:22写道：

> Hi!
> > I am sorry that when I run the serialcheck on my laptop,
> > there always has some error as follow,which mean I cannot
> > verify the serialcheck on my computer for now.
> > Failed to ioctl(,TIOCGICOUNT,)  -- test ttyUSB0
>
> This one can be ignored, that just means that the counters are not
> implemented and the statistics are not printed at the test end.
>
> > tcgetattr() failed: Input/output error -- test ttyS0
> > I am trying to find available machine and then run test.
>
> That looks like there is no UART to begin with.
>
> --
> Cyril Hrubis
> chrubis@suse.cz
>
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