On Mon, Jun 24, 2013 at 4:26 PM, Michel Stempin <michel.stem...@wanadoo.fr> wrote: > This may be it: > "RT288x_SDK/source/linux-2.6.21.x/drivers/char/i2s"
That appears to be their I2S driver. That's sure not where I2S drivers go in the kernel. They appear the have ignored ALSA. Looks like they have the DMA driver code in there. So if someone is gungho about getting I2S going all of the pieces appear to be there. They just need to be turned into a ASLA SOC I2S platform driver. Doing that looks like more of a code rearranging problem rather than needing new code to be written. > > From README: > "Ralink I2S Driver Release Note: > > Version 1.0 : Initial version for this device driver." > > This is for Ralink_ApSoC_SDK_3600_20110715. > > -- Michel > > Le 24/06/2013 22:11, Michel Stempin a écrit : >> Sorry, I thought it was simpler than that... >> >> But I found a userland utility called "i2scmd" into the >> "RT288x_SDK/source/user/rt2880_app" directory... So there should be >> something? >> >> -- Michel >> >> Le 24/06/2013 22:04, jonsm...@gmail.com a écrit : >>> Also, I had initially thought that webcams were using the I2S >>> interface for their audio support. That doesn't appear to be the case, >>> most webcam have a controller chip that put both the video and audio >>> onto USB. That USB then carries the audio into the router chip. >>> >>> Not sure how a phone based on a Ralink router would be implemented. A >>> codec on I2S would make sense, but I don't see any code for doing >>> that. >>> >>> Anyway, I wasn't planning to use audio in my project. I was just going >>> to make it a compile option for other people using the RT5350 module. >>> >>> -- >>> Jon Smirl >>> jonsm...@gmail.com >>> >> _______________________________________________ >> openwrt-devel mailing list >> openwrt-devel@lists.openwrt.org >> https://lists.openwrt.org/mailman/listinfo/openwrt-devel >> -- Jon Smirl jonsm...@gmail.com _______________________________________________ openwrt-devel mailing list openwrt-devel@lists.openwrt.org https://lists.openwrt.org/mailman/listinfo/openwrt-devel
