Hi Greg, Let me rephrase my question then. If I am in kernel space and in another device driver and I need to write a log entry of some sort to another block device, do I just perform an "open" and "write" as if I am in user space? I am very new at this so bear with me on this. Thanks in advance. yx
Date: Tue, 4 Oct 2011 11:04:09 -0700 From: greg@kroah.com To: pointyx@live.com Subject: Re: How to open and write to a block driver within a character driver? CC: kernelnewbies@kernelnewbies.org
On Tue, Oct 04, 2011 at 10:52:33AM -0700, Yang Xiang wrote:
The design is not up to me and I am just developing the code and I need to develop the filter layer to convert the character buf to bio vects. But I am wondering if there is a easy way to do this.
Then I suggest you push back on the design, just because someone told you to do something incorrect, are you supposed to do it?
thanks,
greg k-h
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