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feat(lab02): redo ex3, make ex 4 and 5 title and desciption

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fastium
2026-03-27 15:59:47 +01:00
parent a4bef25652
commit 32a7360248
1 changed files with 58 additions and 14 deletions
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doc/lab-01_02.typ
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@@ -215,6 +215,11 @@ mymodule 16384 0 - Live 0xffff8000011bf000 (O)
#task(
[What does it mean the 4 values in ```/proc/sys/kernel/printk``` ?],
[
]
)
We can show what there is in:
```bash
|> cat /proc/sys/kernel/printk
7 4 1 7
@@ -229,9 +234,48 @@ mymodule 16384 0 - Live 0xffff8000011bf000 (O)
This number matches with this table (#link("https://www.kernel.org/doc/html/latest/core-api/printk-basics.html", [printk documentation])):
#image("resources/img/printk-log-levels.png")
//-------------------
// Exercise 4: Create module with dynamic allocation and a chained list
//-------------------
#task(
[
Create module with dynamic allocation and a chained list
],
[
Create dynamically elements in the kernel. Adapt a kernel module to specify at the installation the number of element to create a initial text.
Each element will contain a unique number. The elements are create at the installation of the module adn chained in a list.
These elements will be destruct during the uninstallation of the module.
Some information messages are emits to allow debugging.
]
)
//-------------------
// Exercise 5: Display the processor chip ID, CPU temperature and the MAC adress of the Ethernet controller
//-------------------
#task(
[
Display the processor chip ID, CPU temperature and the MAC adress of the Ethernet controller
],
[
- Chip ID registers: _0x01c1'4200_ to _0x01c1'420c_
- 32 bits register of the temperature sensor: _0x01c2'5080_
- two 32 bits registers of the Ethernet controller MAC address: _0x01c3'0050_ and _0x01c3'0054_
To calculate the temperature value, there is this formul:
$
"temperature" = -1991 dot "register value" / 10 + 223000
$
The chip ID can be verified in ```/proc/iomem```.
The register value of the temperature can be verified in the file: ```/sys/class/thermal/thermal_zone0/temp```.
The MAC address can be verified with ``` ifconfig```.
]
)
//-------------------------------------
// Glossary