Asus AC56U - ftdi_sio.ko module doesn't exist

[duda007]

Hi all,

I have a problem with my Phoenix USB card reader (FTDI FT232R USB UART ). It's not properly detected as GSM modem instead FTDI reader. I dig into google and I found that problem is in ftdi_sio kernel module. I tried to load this module with this command "insmod ftdi_sio" but without any results. My firmware (Asuswrt-Merlin 380.68 haven't ftdi_sio.ko module in kernel). My question is - there is any chance to add this module (driver)? Or maybe someone have already compiled ftdi_sio.ko module for this firmware and this router model?

Thanks!

 

[Fitz Mutch]

Have you tried this command to manually load the kernel module?
modprobe cdc-acm

Alternatively, is it possible to extract the USB FTDI kernel module from a 4-year old stock firmware? Apparently, Asus had it in there a very long time ago. You could use 7-Zip to open the .TRX firmware image. The kernel modules is located here:

lib\modules\2.6.36.4brcmarm\kernel\drivers\usb\ftdi_sio.ko
lib\modules\2.6.36.4brcmarm\kernel\drivers\usb\usbserial.ko

Download the 4-year old firmware, here:
http://dlcdnet.asus.com/pub/ASUS/wireless/RT-AC56U/FW_RT_AC56U_3004374583.zip

 

[duda007]

Have you tried this command to manually load the kernel module?
modprobe cdc-acm

Alternatively, is it possible to extract the USB FTDI kernel module from a 4-year old stock firmware? Apparently, Asus had it in there a very long time ago. You could use 7-Zip to open the .TRX firmware image. The kernel modules is located here:

lib\modules\2.6.36.4brcmarm\kernel\drivers\usb\ftdi_sio.ko
lib\modules\2.6.36.4brcmarm\kernel\drivers\usb\usbserial.ko

Download the 4-year old firmware, here:
http://dlcdnet.asus.com/pub/ASUS/wireless/RT-AC56U/FW_RT_AC56U_3004374583.zip

I executed modprobe cdc-acm without any errors, but I can't check results because currently I'm in work, and I can't remotely connect my reader to router

Also, I downloaded ftdi_sio.ko and usbserial.ko and I put it into /opt folder, but results of execute insmod /opt/ftdi_sio.ko is: insmod: can't insert '/opt/ftdi_sio.ko': invalid module format
Any ideas?

 

[Fitz Mutch]

Type dmesg to check the results of modprobe cdc-acm. And look for /dev/ttyACM0.

And, I think "invalid module format" means the kernel modules from AsusWRT 374.x are not binary compatible with 380.x.

You could also try extracting ftdi_sio.ko from this firmware,
https://github.com/blackfuel/asuswrt-merlin/releases

Hoowever, I recommend putting the extra kernel modules in /jffs/modules, not /opt.

 

[duda007]

Got it! Thanks a lot! I extracted ftdi_sio.ko and usbserial.ko from https://github.com/blackfuel/asuswrt-merlin/releases and it's works like a charm Also I putted modules to /jffs/modules instead to /opt. I found on another forum, how to insert modules on router startup, I don't know whether this is correct, but as long as it works - it's doesn't matter. But for information I added to /opt/etc/init.d/rc.unslung those lines:
modprobe -r -v option.ko
insmod /jffs/modules/usbserial.ko
insmod /jffs/modules/ftdi_sio.ko

Thanks again for your help @Fitz Mutch

 

[crack1]

Got it! Thanks a lot! I extracted ftdi_sio.ko and usbserial.ko from https://github.com/blackfuel/asuswrt-merlin/releases and it's works like a charm Also I putted modules to /jffs/modules instead to /opt. I found on another forum, how to insert modules on router startup, I don't know whether this is correct, but as long as it works - it's doesn't matter. But for information I added to /opt/etc/init.d/rc.unslung those lines:
modprobe -r -v option.ko
insmod /jffs/modules/usbserial.ko
insmod /jffs/modules/ftdi_sio.ko

Thanks again for your help @Fitz Mutch

Hello
i'm searching for ftdi_sio.ko, too,
how i extract ftdi_sio.ko from the release?

EDIT: ok done, must using 7-zip and extract the trx file

 

[grzegorzl200]

Hello ,
Please help me build the ftdi_sio.ko module for ax56u, I'm using this lecture https://hqt.ro/how-to-compile-modules-for-asuswrt-routers/, but after giving the 'make menuconfig' command I can't find 'Usb serial' tab or maybe another.
I would be grateful for any suggestions.

 

[L&LD]

How are these old threads still open?

 

[octopus]

How are these old threads still open?

Only 7 posts.

 

[L&LD]

But over 6 months?

Logic/reason is fighting inside my head now and I don't like it!

 

[RMerlin]

But over 6 months?

Logic/reason is fighting inside my head now and I don't like it!

Re-read the announcement at the top.

 

[L&LD]

@RMerlin, okay maybe I'm guilty of missing that.

I don't see any announcements at the top of forums because I only read new posts. I don't go to any specific 'forum' to see what's new.

Logically, it shouldn't matter if a thread was 6 months and only xxx number of posts. If anything, it should be the opposite. The more posts in a thread, the longer it should be left alone to thrive.