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Re: [Qemu-devel] Fwd: Re: [PATCH v4 2/2] Add AT24Cxx I2C EEPROM device m

From: Jan Kiszka
Subject: Re: [Qemu-devel] Fwd: Re: [PATCH v4 2/2] Add AT24Cxx I2C EEPROM device model
Date: Wed, 15 May 2013 18:10:46 +0200
User-agent: Mozilla/5.0 (X11; U; Linux i686 (x86_64); de; rv: Gecko/20080226 SUSE/ Thunderbird/ Mnenhy/

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.


Siemens AG, Corporate Technology, CT RTC ITP SDP-DE
Corporate Competence Center Embedded Linux

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