Hi All, I'm trying to interface a Blackfin processor to a TLV320aic23 codec via uClinux. A driver, tlv320aic23.c, exists inside sound/soc/codecs, but there is no corresponding machine driver in sound/blackfin. (There are other low-level drivers in sound/blackfin). Is my assumption correct that two drivers are required, a machine-independent driver and a seperate low-level driver? If so, how do the two drivers co-operate? I have looked at the source of the high-level driver, tlv320aic23.c, and quote the following code snippet :- "codec->hw_write(codec->control_data, data, 2)". "codec" is a structure and the member "hw->write" evaluates to a callable function. For the life of me, I cannot find what function "hw->write" points to, but it must eventually write to hardware. Another example of my confusion! So, what function is called, and how is it initialised in the structure. Any help will be appreciated, including referencing to examples. Regards, Mike ------------------------------------------------------------------------------ ThinkGeek and WIRED's GeekDad team up for the Ultimate GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the lucky parental unit. See the prize list and enter to win: http://p.sf.net/sfu/thinkgeek-promo _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user
