How do build hooks (mkinitcpio) work?

Firstly, from the way I understand it (from the wiki) , hooks are a convenient way of automatically adding necessary kernel modules without running dkms after each kernel update. Coming from Ubuntu, I guess this is a must for a rolling release with kernels updating every day.
I set up two custom hooks, bbswitch abd nvidia, as I am building custom kernels. I then downloaded a tarball for linux-ck from the AUR, and built and installed it myself.
The problem is, even after that, the custom hooks do not appear to work. I had installed broadcom-wl and broadcom-wl-ck, nvidia and nvidia-ck, and when I boot into my new kernel, I have to manually reinstall the ck versions, at which point they work under linux-ck and stop working in default Arch kernel.
Aren't hooks supposed to take care of managing this so that I don't have to reinstall modules everytime?

falconindy wrote:Using mkinitcpio hooks to build kernel modules is entirely unsupported by the mkinitcpio developers (mostly me). It's intended to build your initramfs, not out of tree kernel modules. This is what dkms is for...
Hi thanks for clarifying. After more reading, I think mkinitcpio builds initramfs, which needs to be rebuilt on every update of the current kernel. But when I switch kernels, I suppose I need to get new kernel modules as the old ones give me exec format error.
Hmm, I would have like to automate as well. Maybe the nvidia-hook can auto install optional nvidia drivers listed in the new kernel package?

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Attachments:
RT.PNG ‏36 KB
FIFO read.PNG ‏4 KB

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How to build formula?

Hi,
Maybe someone of you can help me in such issue.
I have data in that form:
City, salesman, revenue.
In Webi I want to create report wich shows revenue per number of salesmen in city.
F.e.
In City_1 there are 4 salesmen and sum of their revenue is 10000,
in City_2 there are 4 salesmen and sum of their revenue is 30000,
In City_3 there are 6 salesmen and sum of their revenue is 60000.
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There is no City and no salesmen dimensions in the report.
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Regards.
MG

hiding report body is an issue, but it can be done some how.
Tell me something
do you want the report like below
city       no of salesman      revenue
city_1   4 salesman            10000
city_2   5 salesman            30000
then try this
variable 1 : no of salesman = count(salesman) In city      (note:make sure you use IN keyword)
variable 2 revenue by city = sum(revenue) in City
in your report pull
city variable1 variable2
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Thanks,
Karthik

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How do build hooks (mkinitcpio) work?

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