I noticed a comment calling for converting drivers from pci_find_device() to pci_get_device() as a beginner kernel project on lkml and started looking into it. What I have been able to discern about the issue is the following: Gleaned from code/documentation/previous posts on the subject: The only remaining user of pci_find_device() seems to be parts of the HiSax isdn driver. pci_find_device() is the same as pci_get_device(), but actively avoids holding a lock/reference count on the pci_dev that it returns. as a result pci_get_device() requires pci_dev_put() to be called on a successful get in order to maintain correct lock/reference count semantics.
After Re-reading the PCI chapter of LDD3: pci_get_device() is also deprecated, recommended init is creating a pci_device struct and mapping probe function etc. into it. Finally noticed when I was setting up my config to build the driver: The entire isdn4linux framework the hisax driver is based on is also deprecated, recommended interface is CAPI. Additional information: I don't have the associated hardware, just interested in doing some hacking. There seem to be three paths forward for updating: find_pci_device()->get_pci_device() for initializing drivers find_pci_device()->struct pci_device for initializing drivers port driver from isdn4linux to CAPI Which of these (if any) are both worth doing and a reasonable "kernel newbie" project? Thanks, Kevin
