2.6.13 char driver not working on 2.6.22
Hello kernel gurus.
I have a char driver module that has been working fine under 2.6.13. It is a PCI card for a Heidenhaim rotational encoder. I am now moving to 2.6.22 and it no longer works. In order to get it to build I changed exactly one line:
I changed this:
rc = pci_module_init(&ik220_driver);
rc = pci_register_driver(&ik220_driver);
Under 2.6.22 it loads fine but as soon as my app opens /dev/ik200 the kernel crashes without a trace. I added lots of printk statements to see what is going on. The printk statements for pci_driver .probe and .remove show up as expected. But as soon as my application does an open the kernel crashes immediately -- I do not even see the file_operations .open() fops entry getting called.
Any clues would be appreciated.
Thanks in advance,
Elwood, Tucson AZ
Win an iPhone 6
Enter to Win
|Geek Hide-away in Guatemala - Stay for Free!||Nov 26, 2015|
|Microsoft and Linux: True Romance or Toxic Love?||Nov 25, 2015|
|Non-Linux FOSS: Install Windows? Yeah, Open Source Can Do That.||Nov 24, 2015|
|Cipher Security: How to harden TLS and SSH||Nov 23, 2015|
|Web Stores Held Hostage||Nov 19, 2015|
|diff -u: What's New in Kernel Development||Nov 17, 2015|
- Microsoft and Linux: True Romance or Toxic Love?
- Geek Hide-away in Guatemala - Stay for Free!
- Cipher Security: How to harden TLS and SSH
- Non-Linux FOSS: Install Windows? Yeah, Open Source Can Do That.
- Web Stores Held Hostage
- Firefox's New Feature for Tighter Security
- PuppetLabs Introduces Application Orchestration
- It's a Bird. It's Another Bird!
- diff -u: What's New in Kernel Development
- IBM LinuxONE Provides New Options for Linux Deployment