Hi,
I'm running into some walls here while trying to add sysfs support to an older
device driver for a PCI framegrabber device.
I started by adding a
---
static struct pci_driver titan_driver = {
.name = DRV_NAME,
.id_table = titan_pci_tbl,
.probe = titan_probe,
.remove = titan_remove,
};
---
and calls to pci_register_driver / pci_unregister_driver. As expected the
driver shows up under /sys/bus/pci/drivers and claims the right device:
---
$ ls -la /sys/bus/pci/drivers/titan/
total 0
drwxr-xr-x 2 root root 0 2009-11-30 09:14 .
drwxr-xr-x 13 root root 0 2009-11-30 09:14 ..
lrwxrwxrwx 1 root root 0 2009-11-30 09:14 0000:00:0b.0 ->
../../../../devices/pci0000:00/0000:00:0b.0
--w------- 1 root root 4096 2009-11-30 09:14 bind
lrwxrwxrwx 1 root root 0 2009-11-30 09:14 module ->
../../../../module/titan
--w------- 1 root root 4096 2009-11-30 09:14 new_id
--w------- 1 root root 4096 2009-11-30 09:14 remove_id
--w------- 1 root root 4096 2009-11-30 09:14 uevent
--w------- 1 root root 4096 2009-11-30 09:14 unbind
---
Now I want device files to be automatically generated, but it seems as if I'm
missing someting here. udevadm tells me I'm getting the following uevents:
---
KERNEL[1259568653.205951] add /module/titan (module)
UDEV_LOG=3
ACTION=add
DEVPATH=/module/titan
SUBSYSTEM=module
SEQNUM=682
KERNEL[1259568653.206472] add /bus/pci/drivers/titan (drivers)
UDEV_LOG=3
ACTION=add
DEVPATH=/bus/pci/drivers/titan
SUBSYSTEM=drivers
SEQNUM=683
UDEV [1259568653.215901] add /module/titan (module)
UDEV_LOG=3
ACTION=add
DEVPATH=/module/titan
SUBSYSTEM=module
SEQNUM=682
UDEV [1259568653.236102] add /bus/pci/drivers/titan (drivers)
UDEV_LOG=3
ACTION=add
DEVPATH=/bus/pci/drivers/titan
SUBSYSTEM=drivers
SEQNUM=683
KERNEL[1259568653.205951] add /module/titan (module)
UDEV_LOG=3
ACTION=add
DEVPATH=/module/titan
SUBSYSTEM=module
SEQNUM=682
---
This looks to me as if I'm missing some uevents here. I guess there's
something I should be doing in .probe, but I'm neither sure whether that's
correct nor what it is.
(Of course I can still add device files using mknod, but that'd be kinda ..
boring.)
Someone willing to give me a hint?
TIA,
Björn
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