what version of the kernel are you using? the sunxi-i2c driver seems support slave mode.
https://github.com/allwinner-zh/linux-3.4-sunxi/blob/master/drivers/i2c/busses/i2c-sunxi.h just search for 'slave' On Wednesday, October 17, 2018 at 7:26:15 AM UTC-7, Stijn Van Mol wrote: > > Hi, > > I'm using the NanoPi Duo board with an Allwinner h2+ CPU. > Trying to use the I2C and SPI interface in slave mode. > I had enabled I2C Slave support + I2C eeprom slave driver (EEPROM > simulator) in the kernel configuration to test if this was feasible. > After compliling the kernel, tried to instantiate the eeprom using > > *echo slave-24c02 0x1064 > /sys/bus/i2c/devices/i2c-0/new_device * > > However, I see the following in dmesg > > *i2c-slave-eeprom 0-1064: i2c_slave_register: not supported by adapter* > > It is my understanding the driver for the I2C controller/adapter of the > H2+ does not support slave mode. > Is this correct? Is there any way around this? Same thing with SPI? > > Below pages also indicate master only. As long as these pages do not > indicate otherwise, slave mode on Allwinner cpu's is not possible? > http://linux-sunxi.org/I2Cdev > http://linux-sunxi.org/SPIdev > > Many thanks! > > > -- You received this message because you are subscribed to the Google Groups "linux-sunxi" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
