[Linux-stm32] [PATCH v2 0/4] Introduce the Counter character device interface

David Lechner david at lechnology.com
Tue Jun 2 15:18:07 UTC 2020


On 5/31/20 12:14 PM, William Breathitt Gray wrote:
> Yielding the following /dev/counter0 memory layout:
> 
> +------------+-----------------+------------+-------------------+
> | Byte 0     | Byte 1 - Byte 8 | Byte 9     | Byte 10 - Byte 17 |
> +------------+-----------------+------------+-------------------+
> | Boundary 0 | Count 0         | Boundary 1 | Count 1           |
> +------------+-----------------+------------+-------------------+

A potential pitfall with this sort of packing is that some platforms
do not support unaligned access, so data would have to be "unpacked"
before it could be used.



More information about the Linux-stm32 mailing list