* how to convert memcpy_tofs and memcpy_fromfs to copy_{to,from}_user?
Should I just change the function names in function calls or is there
something else to consider?
* {get_put}_fs_long - is it now just {get,put}_user?
* select_wait and select_table were converted to poll_wait and poll_table.
How should I use the poll_* interface?
If I had a select function in the driver that first did some stuff and
then a select_wait, should I now write the poll function that just does
the poll_wait forst and the the rest?
* The former select function used
cli();
...
sti();
to protect the inner workings of the function.
Now, this doesn't sound good. I don't have SMP here so SMP compliancy is
not obligatory but I'd like to write it in the proper way. What should
this become?
save_flags(flags);
cli();
...
restore_flags(flags);
is probably better but still not what I want. Some spinlock?
* struct file_operations has a new member flush. What's that?
* struct file_operations has llseek, but the old driver has a method
called lseek. Has lseek been changed to llseek with some semantic changes?
* request_irq now has additional parameters:
unsigned long flags, const char *device, void *dev_id
and free_irq requires the same dev_id. What are these? name is clear.
Flags and dev_id are not. Is dev_ide just for the same driver to
distinguish between several real devices? What to put in flags for normal
ISA bus card?
---
Meelis Roos (mroos@tartu.cyber.ee)
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