Re: Driver model ISA bus

From: Rene Herman
Date: Sun Jul 30 2006 - 05:49:29 EST


Simon White wrote:

Would it be better to have a name variable directly in isa_device and
then copy that to driver in isa_register_device (like
pci_register_device does)?

No, that wouldn't be useful. The point of this code is largely that the devices belong to the driver; do not have a life of their own. As such, naming them after the driver is the correct thibng to do.

I was trying to look for use examples of this code in 2.6.18-rc2 but
didn't see any.

Yes, apologies. I was converting ALSA ISA drivers to use it but had (and have) to deal with a few other matters first all of a sudden. I'll get to it shortly. There is a usage example I posted on the kernelnewbies list a while ago:

http://www.spinics.net/lists/newbies/msg21845.html

Is the intent of name to be the cards address, and ndev to be the
function on a specific card?

No, the name is just an identifier under which the driver (and devices) show up in sysfs and ndev the number of devices we want to the driver code to call our methods with -- given that ISA devices do not announce themselves we have to tell the driver core this.

By the way, please CC people on LKML. I'm still being busy and had to pick this out of the trash where it caught my eye by chance...

Rene.
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