device read/writes don't lock memory

[axeld]

BeOS made sure the memory buffer passed to a device read/write was safe to be written to. Haiku currently requires the drivers to use user_memcpy() to access those buffers, which is not compatible to how the old driver interface works.

Also, the new file system interface doesn't solve this issue yet, either...

[waddlesplash]

Still an issue?

[michaelvoliveira]

ping

[waddlesplash]

Now the use of user_memcpy is mandatory thanks to SMAP, and all drivers have been converted to use it. Closing as fixed.