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Date: Wed, 20 May 2009 22:44:48 +0800 (CST)
From: xuemingmin <xuemingmin@126.com>
To: linuxppc-dev@ozlabs.org
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Subject: Linux pcf8574 driver based MPC8349EA
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Recently , I'm busy with a project based on the main board - MPC8349EA. We use a pcf8574 connected I2C bus. Now my task is programming to test I2C bus. I find that file system contains the chip(pcf8574) module .And I add this module into the kernel. But I find that system only registers the driver,not device.And I can not get the device's major and minor device number. Therefore, I can not create the device file to operate the device.
My question:
 How can I use the device which is not registered in the system,or can you provide some advices to complete the task.


 
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<DIV>Recently , I'm busy with a project based on the main board - MPC8349EA=
 We use a pcf8574 connected I2C bus. Now my task is programming to test I2=
C bus. I find that file system contains the chip(pcf8574) module .And I add=
 this module into the kernel. But I find that system only registers the dri=
ver,not device.And I can not get the device's major and minor device number=
&nbsp;Therefore, I can not create the device file to operate the device.<B=
R>My question:<BR>&nbsp;How can I use the device which is not registered in=
 the system,or can you provide some advices to complete the task.</DIV>
<DIV><BR><BR>&nbsp;</DIV><br><!-- footer --><br><span title=3D"neteasefoote=
r"/><hr/>
<a href=3D"http://512.mail.163.com/mailstamp/stamp/dz/activity.do?from=3Dfo=
oter">=B4=A9=D4=BD=B5=D8=D5=F0=B4=F8 =BC=CD=C4=EE=E3=EB=B4=A8=B5=D8=D5=F0=
=D2=BB=D6=DC=C4=EA</a>
</span>
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