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I haven't worked with sysfs much, but I found a simple-looking example that's pretty similar to what you are doing (naturally, it's also under ARM). Take a look at <code>arch/arm/mach-omap1/pm.c</code>, specifically the <code>idle_show</code>/<code>idle_store</code> sysfs file. It gets registered (using <code>sysfs_create_file()</code>) as <code>/sys/power/sleep_while_idle</code> and uses the global <code>/sys/power</code> kobj (defined in <code>include/linux/kobject.h</code>). There are a few other global kobj's defined there that you could use, although I'm don't think any are a good fit for your driver. Is this going to be a platform driver? As a driver that doesn't fit under any bus, it seems like a good fit. Platform drivers get their own directory under /sys/devices/platform, and can have attributes there. Take a look at <code>drivers/hwmon/coretemp.c</code>, which has <code>temp1_crit</code>, <code>temp1_crit_alarm</code>, <code>temp1_input</code>, etc. as attributes. It looks fairly simple: create the attributes (maybe with <code>__ATTR()</code>?), list them all in an array, define an <code>attribute_group</code>, register it with <code>sysfs_create_group()</code> in the <code>probe()</code> function, and unregister it with <code>sysfs_remove_group()</code> in the <code>remove()</code> function. There are probably other platform drivers that define attributes (search for <code>sysfs_create_group</code>) if you need other examples. Hope this helps!
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1. POLinux driver access through sysfs
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1. USBrendan Shanks
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1. COI'll have a look at the coretemp.c driver. Thanks!
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 USTed Middleton
2. COAn update - the coretemp module was the perfect template. I got some sysfs attributes working quite nicely. Thanks again.
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