Hi, I implemented gas gauge driver by 1-Wire interface in OMAP4 CPU, the driver we used is a GPIO pin to simulate 1-Wire bus but it sometimes can't work well of timing issue. So we want to use HDQ/1Wire controller in OMAP4, does anyone have experience of OMAP4 1-Wire driver of using its controller? Our gas gauge is DS2780 and we use "android-omap-3.0" kernel branch. I tried to do below steps but it still can't work. Or do you have any suggestion? Thanks. 1. Add hwmod of hdq1w in omap_hwmod_44xx_data.c file 2. Use omap_hdq.c file 3. Select "CONFIG_HDQ_MASTER_OMAP", "CONFIG_W1", "CONFIG_HDQ_MASTER_OMAP" and "CONFIG_BATTERY_DS2780" in menuconfig. Regards, Herman -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html