Date: Thu, 09 Sep 2021 10:01:21 +0300
From: Oleksiy Vilny <456123@ukr.net>
Subject: Re[2]: [3.14.1] is missing kernel module
To: u.alpine.devel@lists.alpinelinux.org
Cc: Milan =?UTF-8?b?UC5TdGFuacSH?= <mps@arvanta.net>, Natanael Copa
	<ncopa@alpinelinux.org>
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	<YTi3Grdq+RKym7yc@elm>
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Hi,

8 September 2021, 16:38:50, by "Milan P. Stanić" <mps@arvanta.net>:

> On Wed, 2021-09-08 at 15:56, Oleksiy Vilny wrote:
>>
>> I tried to connect my APC SmartUPS to Alpine Linux 3.14.1 with kernel
>> 5.10.56-0-virt (x86_64) via USB. While the UPS device was recognized
>> by the kernel and shows up in /var/log/messages, the apcupsd cannot
>> find the device. The reason is /dev/usb/hiddev[0-9] is not created.
>> According to the manual at 
>> http://www.apcupsd.com/manual/manual.html#verifying-device-detection-and-driver
>> apcupsd requires the following kernel modules to be installed:
>> 
>> CONFIG_USB
>> CONFIG_USB_HID
>> CONFIG_USB_HIDDEV
>> 
>> The first two are present, though usbhiddev is missing:
>> 
>> alpine:~# cat /boot/config-virt | grep CONFIG_USB_HID*
>> CONFIG_USB_HID=m
>> # CONFIG_USB_HIDDEV is not set
>> 
>> I would kindly ask in the upcoming build the configuration to
>> be changed to
>> 
>> CONFIG_USB_HIDDEV=y
>
> -virt kernels are for virtual machines (qemu and similar) and they don't
> have much drivers for hardware devices enabled.
> Use 'normal' kernel, those without '-virt' in package name.
> 

   We have a need to control APC UPS from within virtual environment
and would really like to avoid solution with non -virt Alpine flavour
because of hard memory limits we have. Trying to keep virtual machine
memory footprint as low as possible we have to use -virt flavour.

Maybe Natanael Copa could help with it?

Thank you.