Hans J. Koch wrote:
> After a successfull uio_register_device() there is both a /dev/uioX 
> and a directory /sys/class/uio/uioX/.

In the attachment is an updated version of uio_jand.

The module uio_jand.ko can be inserted and removed,  no messages visible 
by dmesg, no kernel oops, no dev/uio*  and no class entries available.

There are only entries of uio_jand in /sys/module, 
/sys/bus/platform/drivers and /sys/uio/holders ... I'm really confused =:-/

It's completely unclear how to write the initial platform_data of the 
platform device in the example uio_smx.c :

     regs = platform_get_resource(dev, IORESOURCE_MEM, 0);
     if (!regs) {
         dev_err(&dev->dev, "No memory resource specified\n");
         goto out_free;

Same issue in uio_platform_genirq ...

Cheers

--Armin