On 2013-05-15 08:20, Weng Fan wrote: > Hi. > I want to use this patch for qemu-system-arm. > But an error occurred during initialization of the i2c device. > > The error message is : > > qemu-system-arm: drive property not set > qemu-system-arm: Initialization of device at24 failed > > The command is: > qemu-system-arm -M versatilepb -nographic -kernel zImage -initrd > initrd.img -append "root=linuxrc console=ttyAMA0,115200"
You command line is incomplete, no mentioning of the -drive at24. The intended usage is: -drive file=/path/to/image,if=none,id=eeprom -device at24,drive=eeprom You can also specify the desired at24xxx type explicitly, e.g. at24c256 for the 256K model. Otherwise the type is derived from the image size. Jan -- Siemens AG, Corporate Technology, CT RTC ITP SDP-DE Corporate Competence Center Embedded Linux
