March 2008 - Darwin-kernel - lists.apple.com

Re: Are memory pages being lost in i386_vm_init()?
by Shantonu Sen 26 Mar '08

26 Mar '08

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Are memory pages being lost in i386_vm_init()?
by Yount, Chuck 26 Mar '08

26 Mar '08

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Thread-index: AciPaYJh5SWv6GHuS+e6E6D3y8EDTg== Thread-topic: Are memory pages being lost in i386_vm_init()? _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/site_archiver%40lists.… This email sent to site_archiver(a)lists.apple.com

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Re: communication from kext to user space application
by Duane Murphy 26 Mar '08

26 Mar '08

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com --- At Wed, 26 Mar 2008 16:54:02 +0100, Lutz Helwing wrote: >Hi there, > >i have an already working kext which writes to syslog without any >problems. However what i actually want is an application (maybe >daemon) which receives this messages from my kext. I was thinking >about reading from the syslog but this doesn't look like a very >efficient and elegant solution. My question is: How can a kext pass >messages to a user space application? Is there at least any >documentation and/or examples on this or does anyone have a suggestion >on how to start here? I assume that this is not such a big issue? But >it's the only (and of course most important) part that is missing >missing? <http://developer.apple.com/documentation/DeviceDrivers/Conceptual/ WritingDeviceDriver/MakingHWAccessible/chapter_5_section_3.html#// apple_ref/doc/uid/TP30000698-TPXREF108> In this section there is a discussion of passing notifications from the kernel into user space. User space communication is initiated from user space to the kernel. Also, this might help <http://developer.apple.com/technotes/tn2005/ tn2083.html>. There is a lot of information in this document so you'll have to work at finding a solution for you. ...Duane _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/site_archiver%40lists.… This email sent to site_archiver(a)lists.apple.com

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communication from kext to user space application
by Lutz Helwing 26 Mar '08

26 Mar '08

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Hi there, _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/site_archiver%40lists.… i have an already working kext which writes to syslog without any problems. However what i actually want is an application (maybe daemon) which receives this messages from my kext. I was thinking about reading from the syslog but this doesn't look like a very efficient and elegant solution. My question is: How can a kext pass messages to a user space application? Is there at least any documentation and/or examples on this or does anyone have a suggestion on how to start here? I assume that this is not such a big issue? But it's the only (and of course most important) part that is missing missing? This email sent to site_archiver(a)lists.apple.com

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Re: [IRQ] how to use it?
by Michael Smith 24 Mar '08

24 Mar '08

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com On Mar 24, 2008, at 2:43 PM, syl wrote: Ok thanks. Do you know if I can just call in my kext the good functions in C or does I need to redesign all my driver to follow the IOKit way in a C++ language? You must use I/O Kit if you want to write a device driver for Darwin. = Mike _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/site_archiver%40lists.… Interrupts are only usable via I/O Kit on Mac OS X. It is worth looking at your driver's architecture to see whether you can adapt it to work with I/O Kit - generally though, you will find that you will want to use lower-level fragments from an existing driver (at most) within a properly-designed I/O Kit driver written from scratch. This email sent to site_archiver(a)lists.apple.com

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Re: [IRQ] how to use it?
by Andrew Gallatin 24 Mar '08

24 Mar '08

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com > Do you know if I can just call in my kext the good functions in C > or does I need to redesign all my driver to follow the IOKit way > in a C++ language? If you've got a good reason (like shared code with many platforms, where most of the code is platform independent), you should just keep the C++ IOKit stuff in a C++ file, and the rest of your driver in C. If you're targetting MacOSX from scratch, you should probably do the entire thing in C++ like a normal MacOSX driver. Drew _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/site_archiver%40lists.… This email sent to site_archiver(a)lists.apple.com

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Re: [IRQ] how to use it?
by syl 24 Mar '08

24 Mar '08

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=beta; h=domainkey-signature:received:received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; bh=Ea5nStOZCENLVUsY0ZUlxNiIrwk1SnHRgfm7bmV5LM0=; b=rJHcW4y+5ygEKc+OuOFzeZslEVJ8YCEVInqAmgiJvL14enRTzbC2Xo0566k9/9UQ3CuwIR+cy9aeP5Fl3DMOchO91igaM3RLnP8KhE4wU9eA/7Ezl4Fj29KVOzkbmEpl0uuHYXRhxo9aP01ruyXxGrYRAYf+0N2Tm6Co7sUbiLE= Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=WMjJI6eqSa0fA6g6r66dcBF51qj5LKftB06DbXOISchX6i93g+rAYVRKSSjXJ/WvoKHKKoZlqWinA+3tTCuSS3uKmsmiEnbtJDyx+SjebBTPLp5AxlxFh2XM4eJ0+kQaIzJVLSRMTLB6u77IFSgUDRpIwNgw0GNW1AXblkTR+0A= On Mon, Mar 24, 2008 at 9:58 PM, Garth Cummings <gcummings(a)apple.com> wrote: > Hi syl, > > > On Mar 24, 2008, at 1:44 PM, syl wrote: > > > On Mon, Mar 24, 2008 at 9:13 PM, Michael Smith <drivers(a)mu.org> wrote: > >> > >> On Mar 24, 2008, at 12:28 PM, syl wrote: > >> > >>> I'm trying to wrote an driver using irq and I want to do it without > >>> the IOKit. I've created my chardev with cdevsw_add and a simply > >>> driver who play on ioport seems to work fine :) > >> > >> You cannot do this. And you should not do this. > > > > Are talking about not using the IOKit or about using IRQ ? > > > >> > >> = Mike > > Interrupts are only usable via I/O Kit on Mac OS X. Ok thanks. Do you know if I can just call in my kext the good functions in C or does I need to redesign all my driver to follow the IOKit way in a C++ language? > > --gc > ____________________________________________________________________ > Garth Cummings gcummings(a)apple.com > Sr. Software Engineer > Apple Developer Technical Support > > <http://developer.apple.com/technicalsupport> > > WWDC 2008 • June 9-13 • Moscone West • San Francisco, CA > <http://developer.apple.com/wwdc/> > > -- Gallon sylvestre Astek méchant / Assistant Cisco Rathaxes Core Developper / LSE researcher kernel developer for adeneo and OpenBSD fan http://devsyl.blogspot.com/ | www.rathaxes.eu _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/site_archiver%40lists.… This email sent to site_archiver(a)lists.apple.com

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Re: [IRQ] how to use it?
by Garth Cummings 24 Mar '08

24 Mar '08

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Hi syl, On Mar 24, 2008, at 1:44 PM, syl wrote: On Mar 24, 2008, at 12:28 PM, syl wrote: I'm trying to wrote an driver using irq and I want to do it without the IOKit. I've created my chardev with cdevsw_add and a simply driver who play on ioport seems to work fine :) Are talking about not using the IOKit or about using IRQ ? Interrupts are only usable via I/O Kit on Mac OS X. --gc ____________________________________________________________________ Garth Cummings gcummings(a)apple.com Sr. Software Engineer Apple Developer Technical Support <http://developer.apple.com/technicalsupport> WWDC 2008 • June 9-13 • Moscone West • San Francisco, CA <http://developer.apple.com/wwdc/> _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/site_archiver%40lists.… On Mon, Mar 24, 2008 at 9:13 PM, Michael Smith <drivers(a)mu.org> wrote: You cannot do this. And you should not do this. = Mike This email sent to site_archiver(a)lists.apple.com

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Re: [IRQ] how to use it?
by syl 24 Mar '08

24 Mar '08

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=beta; h=domainkey-signature:received:received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; bh=xCH8EbDgjss4eVGxeAE+fhSkKdB7m9ldr86POq6PgVk=; b=UPKPZfWwNzWBe4JYW1GAETXNXswu2qJujQ8rLfiD5/68HC8rne4OjZbbHQnTCnC96OT1txahQFm+gyvWXU1IMQNLL1rNLvOmtK9jt2VfdBES6aHpBvIW+eXymo7l1HGOnJkkonRCKBcyzFzL0/71lwxEBWUHzYDLH0RNcs3kasc= Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=VWKBBKQX0mMp35CFKVLdmwtV1t07w9cjtnUvor8Pe94v85RF/gSbygJtBOWFACZ8dJIuuuWKVQuOYw2sedCTWECyzprRob7IMRcZR2i32M+xIj+TBqlMq/AO1vZJjO4M2duToZlLbZUHmT/apsOuKzGyehZY8lfebJM1fh9hKoM= On Mon, Mar 24, 2008 at 9:13 PM, Michael Smith <drivers(a)mu.org> wrote: > > On Mar 24, 2008, at 12:28 PM, syl wrote: > > > I'm trying to wrote an driver using irq and I want to do it without > > the IOKit. I've created my chardev with cdevsw_add and a simply > > driver who play on ioport seems to work fine :) > > You cannot do this. And you should not do this. Are talking about not using the IOKit or about using IRQ ? > > = Mike > > -- Gallon sylvestre Astek méchant / Assistant Cisco Rathaxes Core Developper / LSE researcher kernel developer for adeneo and OpenBSD fan http://devsyl.blogspot.com/ | www.rathaxes.eu _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/site_archiver%40lists.… This email sent to site_archiver(a)lists.apple.com

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Re: [IRQ] how to use it?
by Michael Smith 24 Mar '08

24 Mar '08

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com On Mar 24, 2008, at 12:28 PM, syl wrote: I'm trying to wrote an driver using irq and I want to do it without the IOKit. I've created my chardev with cdevsw_add and a simply driver who play on ioport seems to work fine :) You cannot do this. And you should not do this. = Mike _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/site_archiver%40lists.… This email sent to site_archiver(a)lists.apple.com

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