I have problems installing any kernel module as it seems, they all have a dependency to a kernel with same version but different version ending, see below:

root@OpenWrt:/# opkg install kmod-usb-serial coreutils-stty
Installing kmod-usb-serial (3.3.8-1) to root...
Downloading http://downloads.openwrt.org/attitude_adjustment/12.09/ar71xx/generic/packages/kmod-usb-serial_3.3.8-1_ar71xx.ipk.
Package coreutils-stty (8.16-1) installed in root is up to date.
Collected errors:
 * satisfy_dependencies_for: Cannot satisfy the following dependencies for kmod-usb-serial:
 *      kernel (= 3.3.8-1-d6597ebf6203328d3519ea3c3371a493) * 
 * opkg_install_cmd: Cannot install package kmod-usb-serial.

So, I'm having:

root@OpenWrt:/# opkg list-installed| grep kernel
kernel - 3.3.8-1-cf032f02071b358867cb4d8f778785c2

I was under the impression that I will be able to install all packages for my openwrt version (12.09) but apparently not, can someone shed light on this.

Why do I have a slightly different kernel version?
What is the normal way out of this situation?

I need to install the prolific drivers so I can connect to another device UART console.

Thanks for the help...

I had the same problem with a custom build kernel. You can install the kernel usb with the option "--force-depends". Just type "opkg" to see all available options and their explanations. For course that doesn't gaurantee that the module will actually work. But if kmod-usb-serial fails to load that should not cause any major problems. But anyway, use force-depens at your own risk.

Hmm, yes, I tried to force but I get an exception and device wont boot.

But I'm really interested to understand how it works, why I can't install kernel modules, its crucial.

I need to load the pl2303 kernel module for the prolific usb to serial converter, its not like i have a choice to skip it, I have to have it work as it part of a project.

(Last edited by sminded on 28 Mar 2016, 20:04)

Looks like you might not be using the official release? The checksum of its kernel is d6597ebf6203328d3519ea3c3371a493. See:

https://downloads.openwrt.org/attitude_ … /packages/

(Last edited by Borromini on 28 Mar 2016, 20:07)