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raspberrypi / utils

A collection of scripts and simple applications
BSD 3-Clause "New" or "Revised" License
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truncated output #3

Closed arachnaut closed 2 years ago

arachnaut commented 5 years ago

The line

"cat /sys/firmware/devicetree/base/model"

for Raspian Pi 4 puts out some garbage characters that seem to truncate the tee output

Here is what I see when I comment that line away:

System Information

PRETTY_NAME="Raspbian GNU/Linux 10 (buster)" NAME="Raspbian GNU/Linux" VERSION_ID="10" VERSION="10 (buster)"

Raspberry Pi reference 2019-07-10 Generated using pi-gen, https://github.com/RPi-Distro/pi-gen, 175dfb027ffabd4b8d5080097af0e51ed9a4a56c, stage5

Linux raspberrypi 4.19.66-v7l+ #1253 SMP Thu Aug 15 12:02:08 BST 2019 armv7l GNU/Linux Hardware : BCM2835 Revision : c03111 ...

Otherwise it is truncated at the start.

pelwell commented 5 years ago

raspinfo works for me, and the content of the model property looks correct:

pi@raspberrypi:~ $ od -Ax -tx1 /sys/firmware/devicetree/base/model 
000000 52 61 73 70 62 65 72 72 79 20 50 69 20 34 20 4d
000010 6f 64 65 6c 20 42 20 52 65 76 20 31 2e 31 00
00001f

Please run the same command and show the output.

1stcall commented 2 years ago

I notice if I open my output from raspinfo in vscode, the model of the pi line is terminated with a (null). System Information

Raspberry Pi 4 Model B Rev 1.4 and System Information

Raspberry Pi Compute Module 4 Rev 1.0

raspinfo.txt

pelwell commented 2 years ago

Indeed - that is how strings are represented in Device Tree. raspinfo could be modified to surpress the NUL, but it's not been a problem so far (you are the first to comment).