,Save, and that's all with the source code modification. put this in similar place, next to all the other devices This is what we will use in our modification. To do so, type this:īus 001 Device 009: ID 0572:1328 Conexant Systems (Rockwell), Inc. First of all, we need to make sure that the ID as reported by lsusb is matches our modifications. This ubuntu forum post " Shiro/Conexant (Rockwell) RD02-D400/Aztech UM3100 USB 56K Modem" provides the information to add support for the Aztech modem. For me, I just want to compile the usb modem module, and not need to wait for the entire compilation process. Now you are ready to compile the entire kernel. Copy your config from the /boot directory to this directory Which should recreate the kernel source in /usr/src/redhat/BUILD/kernel-2.6.18/linux-2.6.18.i686. # rpmbuild -bp -target=$(uname -m) /usr/src/redhat/SPECS/kernel-2.6.spec You will then need to extract the source from redhats patches by doing this: A " rpm -hiv" extracted the sources in /usr/src/redhat. It took only about 7 minutes to download. Prepping the system for module compilationįirst, we need to bring down the linux kernel source.
#Usb cdc modem device driver how to
Here is a brief lowdown on how to get the Aztech modem recognised in CentOS 5.0. This usb-modem isn't supported out of the box, fortunately it isn't too much a problem, but it does require a recompilation of the cdc-acm (USB Communication Device Class definition - Abstract Control Module). So not very good news to start off the day.
#Usb cdc modem device driver driver
Usb 1-2: configuration #1 chosen from 2 choicesĭrivers/usb/class/cdc-acm.c: Zero length descriptor referencesĬdc_acm: probe of 1-2:1.0 failed with error -22ĭrivers/usb/class/cdc-acm.c: v0.25:USB Abstract Control Model driver for USB modems and ISDN adapters Usb 1-2: new full speed USB device using uhci_hcd and address 5
Usb 1-2: device not accepting address 4, error -71 Usb 1-2: new full speed USB device using uhci_hcd and address 4 Usb 1-2: new full speed USB device using uhci_hcd and address 3 Usb 1-2: device descriptor read/64, error -71 Usb 1-2: new full speed USB device using uhci_hcd and address 2 So I plugged it into the machine, and this was the dmesg output: Relatively cheap at about RM70, we thought it would be a great solution. So a good solution would be to use some USB modems small, cheap, USB powered and easily replaceable. They lasted a good 9 years (or more!) and I dont think they make them anymore.Īdditionally they had to be powered by large adaptors, which took up way too much room. Our old Hylafax external modems decided to kick the bucket over the weekend, and it was an opportunity to refresh the hardware.