Re: user-space <-> kernel-space
H. Peter Anvin (firstname.lastname@example.org)
14 Feb 2002 18:14:38 -0800
Followup to: <email@example.com>
By author: Henrique Gobbi <firstname.lastname@example.org>
In newsgroup: linux.dev.kernel
> Hello !!!
> I am trying to develop a line analyzer to my multi-serial card but I am not
> seeing a good solution to send data from the driver to the application in the
> Inittialy, I thought in use a char device, but all my minors are beeing used
> and I don't wanna to use another major.
> I'd like to know two things:
> 1 - Is there any way to use more than 256 minors under a major
Not until we get a larger dev_t.
> 2 - Is there a simple way to send data from the kernel-space to the
A character device node.
Use a minor from the miscdevice series.
<email@example.com> at work, <firstname.lastname@example.org> in private!
"Unix gives you enough rope to shoot yourself in the foot."
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