hi all:
my questions are below:
1. Can I temporarily let kernel message show in stdout?
I google some key word as "console_loglevel" and I found following methods:
a. echo 8 > /proc/sys/kernel/printk
b. write a simple program which calling "klogctl(8, NULL, level)"
Then I purposely connect/disconnect USB, but my console keep quiet.
But dmesg shows connect/disconnect messages.
2. what is differences between above a and b methods?
Are they not to used to change console_loglevel?
3. is it possible the max level of "console_loglevel" doesn't mean it
will show on stdout?
--
Thanks for your help
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