I checked on 6.2.13 and seems to work now. Thanks!

I'm using tdevmon-3.3.11-linux-amd64 on Manjaro Linux with 6.2.13 kernel. When I'm using Serial Monitor to sniff for serial traffic, tdevmon correctly shows the output data, but the input data is shown as zero.

For example, this is a glimpse of an output for a Python script I'm using to write and read to /dev/ttyUSB0:

DEBUG:downloader:>> 5a a5 f3 82 84 38 6d 6e 5d 1f 55 fb 64 2c 9a 80 9a 04 95 7c 95 0e 59 f0 8a c4 90 30 31 ce 32 32 01 f9 c3 e0 4f 81 de 3e f8 9f a7 7d bf c2 7e 13 d4 fc 41 69 f6 e4 d3 4c b6 10 f9 80 5c 32 97 08 71 c8 f9 41 62 4f 00 02 49 02 b4 ee 7f 66 9f 8a 16 be 35 d6 7c 20 de 0a d5 25 f1 3e 8f 62 35 2b ed 2a de 31 34 f0 db 9d 98 7d a8 4e 73 e6 26 00 c9 3b 87 15 ee df 08 3c 5b ac f8 3f fe 09 cd f1 66 e3 43 d5 2e b4 9b 9b 9f 17 58 5a cb 3d 9c a6 39 1a 26 89 0b 26 e1 c8 07 68 07 07 91 91 d0 91 50 7e c2 be 21 d5 6e a4 fd a2 b5 69 b5 3b c9 b5 48 fe 13 eb 52 25 f4 93 bb 4e ac 8b 16 c6 0e 4e e0 57 03 07 3c 60 62 80 3c 1b e2 97 ec fb f1 1b e0 9c 1a 6c fe 39 f0 86 a5 e1 b8 35 1d c2 d6 5b c8 c6 c9 08 00 95 dc a4 80 c0 10 76 9c 1f 6a ed 7e 20 7e cd 1a ef
DEBUG:downloader:<< 5a a5 03 82 4f 4b

Yet, IO Ninja shows this:

Same happens with Linux 6.3.0, while it works fine on Linux 5.15.109.