On Thu, Jan 13, 2011 at 11:48 AM, Jean Delvare <khali@xxxxxxxxxxxx> wrote: > On Thu, 13 Jan 2011 11:34:42 -0500, Andy Walls wrote: >> How should clock stretches by slaves be handled using i2c-algo-bit? > > It is already handled. But hdpvr-i2c doesn't use i2c-algo-bit. I2C > support is done with USB commands instead. Maybe the hardware > implementation doesn't support clock stretching by slaves. Apparently > it doesn't support repeated start conditions either, so it wouldn't > surprise me. The hardware implementation does support clock stretching, or else it wouldn't be working under Windows. That said, it's possible that the driver for the i2c master isn't checking the proper bits to detect the clock stretch. I haven't personally looked at the code for the i2c master, so I cannot say one way or the other. The Zilog is a pretty nasty beast, and for various reasons it is especially problematic on the HD-PVR due to some issues I cannot really get into on a public forum. Devin -- Devin J. Heitmueller - Kernel Labs http://www.kernellabs.com -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
