On Fri, Jul 22, 2011 at 11:52:44AM -0700, Patrick Lai wrote:
On 7/22/2011 2:07 AM, Mark Brown wrote:
codec_reg. This is the sort of question that can easily be answered by looking at the code, or a running system.
I checked soc-core.c on Linux next and I do not believe there is such debugfs interface. Here is the interface proposal.
By default, cat codec_reg prints entire register dump If someone echo "<register_addr>" > codec_reg before running cat codec_reg, only register address and value of given register would be printed. Afterward, state gets reset. Entire register dump gets printed if user cat codec_reg again
No, that's bad as it means you can rely on the behaviour of the existing file. Just use codec_reg, it already does what you need - if you look at the code you'll see that it only displays the registers you actually read from it and since the registers are displayed in a fixed length format they'll always appear at a consistent place in the file.