May 2006 - Darwin-kernel - lists.apple.com

nfsv4 client for darwin8/xnu-792
by rick＠snowhite.cis.uoguelph.ca 31 May '06

31 May '06

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com I've put up a first release of my NFS Version 4 (does 2 and 3 as well) client for xnu-792/Darwin8. It has only been tested on a generic Pentium4 running Darwin8.0.1 and mounting from either my NFSv4 server or a Solaris10 server. These combinations could be considered beta test. All other cases would be alpha test at this point. If you are interested, you can anonymous ftp it from: ftp.cis.uoguelph.ca/pub/nfsv4/darwin-port It includes support for krb5[ip] security, but that only works if you install Heimdal-0.7.2, at this time. Let me know how it goes, if you try it, rick _______________________________________________ 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: usb 2.0 support
by Brian Bechtel 31 May '06

31 May '06

site_archiver(a)lists.apple.com Delivered-To: Darwin-kernel(a)lists.apple.com Domainkey-signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=ON7V8JTRLJqPInoQOsHUe9BShsQjsb6X4k2dmgeQ7ubBDlbXeDSg9FWt4LhBMHO3McOO+Sdqxy/hqBB9WLuG9N5BBE4sj/25ZbwtTxukA76MeN2JHryBYZQWo87y86LvdUPynZl/jlfCSi0SCjz23Be6Uf7hsBlA/RSsAqXwbqM= This is regarding USB 2.0 support provided by MAC OS x. Could you please tell me when and with witch os x (hardware) USB 2.0 support came. Perhaps you are unaware that Apple provides two websites with such information. The website <http://support.apple.com> contains end-user oriented information, and the website <http://developer.apple.com> contains developer oriented information. Both sites include a search facility which will help you satisfy your request. Good luck. _______________________________________________ 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 5/31/06, sachin kumar <sachink_t(a)yahoo.com> wrote: This email sent to site_archiver(a)lists.apple.com

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usb 2.0 support
by sachin kumar 31 May '06

31 May '06

site_archiver(a)lists.apple.com Delivered-To: Darwin-kernel(a)lists.apple.com Domainkey-signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=Message-ID:Date:From:Reply-To:Subject:To:MIME-Version:Content-Type; b=I9x0txvvd8fXsVBLLlwB8Zb6NwKBhakjheX2lZNEfoAf/5XKpqJJW9P7MrbVqmXdIhEY06gD8tlpzRZYYV2lcfE3zkO8xzPonEF8U4K+U6icg7sbgpuQShMkYBaZ3Xg2dSXr7P5NrSoe5IOBmIGcfSuapFmHpzTyHz2y7rO5leY= ; _______________________________________________ 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: kernel panic while unloading the driver, USB Bulk device driver KEXT.
by Garth Cummings 30 May '06

30 May '06

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com On May 30, 2006, at 10:09 AM, rohit dhamija wrote: <http://developer.apple.com/hardwaredrivers/download>. --gc ____________________________________________________________________ Garth Cummings gcummings(a)apple.com Sr. Software Engineer Apple Developer Technical Support <http://developer.apple.com/technicalsupport> _______________________________________________ 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.… Is it advisable to replace the kernel with debug version of kext's in development machine? Download the Kernel Debug Kit for your version of Mac OS X and read the ReadMe file in the kit. That will answer your question. This email sent to site_archiver(a)lists.apple.com

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Re: kernel panic while unloading the driver, USB Bulk device driver KEXT.
by rohit dhamija 30 May '06

30 May '06

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Domainkey-signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:references; b=T7Z0sbV4TdWZeLYl/PsDGgfK9vQhUvoToZ7kJczvsXDtTcVuRV7doFg/obdDVYrnak5XQI+qx8Fk46jiZojzL3kQLnYClQK1+GrRpCQU8nOWIfuvPrB9Q7oSyzzol2rfmzk2Kul7sJTiXtDuWWokSp1o/9Ug20OsKrMVGUMbRlc= _______________________________________________ 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: kernel panic while unloading the driver, USB Bulk device driver KEXT.
by Herb Petschauer 30 May '06

30 May '06

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Domainkey-signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=ZudL5o3iZVmzNfuqZzMavo8raSSOh8Sd/a01aYmPZ0uP7mGzwD6GRJEhqRG6Utb14dkqDByklC4LQi9YhESrFM4yXQcGUM20a+yOy2dENUC+allLQOuwUUAhjiBbUtg7WVeS0IvZqTk6k+dKt2b/6aNaFDyEIE8JqHC2uqhn5JE= Edited and inlined... Dear All, IOService * rootDomain; 1. I Register the driver as an interested object by calling the IOService method bool myDriver::start(IOService *provider) { bool res = super::start(provider); if(!res) { return false; } rootDomain = (IOService *)getPMRootDomain(); if (rootDomain) { rootDomain->registerInterestedDriver(this); } registerService(); return res; } 4. Deregister the interested object by calling the IOService method deRegisterInterestedDriver. void myDriver::stop(IOService *provider) { if(rootDomain) { deRegisterInterestedDriver (rootDomain ); } super::stop(provider); } ///////////////////////// when I unload the kext, sudo kextunload -v myDriver.kext, the kernel panics. Did anybody encountered the same situation before? What can be the reason behind the same ? Please advice. I suspect that examing the panic log, generating your debugging symbols and looking at the backtrace in gdb will point to your problem. That or a 5 minute code review... I'd recommend the first option as a learning experience (it will also take about 5 minutes, maybe 15 the first time and you will use it often). Also , I have another query, In powerStateWillChangeTo function, can we get IOUSBDevice* using IOUSBDevice* pDevice = OSDynamicCast(IOUSBDevice, provider) [Yes, my provider is IOUSBDevice] and your equivalent question in user space would be: IOUSBDevice *pDevice = dynamic_cast<IOUSBDevice *>(provider). Will pDevice return a valid IOUSBDevice if <provider> is_a IOUSBDevice? <http://www.cplusplus.com/doc/tutorial/typecasting.html> hth, Cheers! -H. _______________________________________________ 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 30/05/06, rohit dhamija <rohit.dhamija(a)gmail.com> wrote: This email sent to site_archiver(a)lists.apple.com

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Re: kernel panic while unloading the driver, USB Bulk device driver KEXT.
by Michael Smith 30 May '06

30 May '06

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com On May 30, 2006, at 4:04 AM, rohit dhamija wrote: = 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.… I am successful in registering the sleep notification , get the notification as soon as my system sleeps. But the kernel panics as soon as I unload my kext. [I am sure about this, because if I remove sleep functionality, the unloading works fine too.] Below are the steps performed : Where does the kernel panic? Have you read the guide on kernel debugging I suggested? Have you obtained the correct kernel with symbols so that you can cross-reference with the open-source distribution? This email sent to site_archiver(a)lists.apple.com

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kernel panic while unloading the driver, USB Bulk device driver KEXT.
by rohit dhamija 30 May '06

30 May '06

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Domainkey-signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:mime-version:content-type; b=mCFJzKlfXdHlVvbVpKjup+utcKGjPSPqKO3wJQBYhg9PYAlKiUbp6bDe9RWYEshNgv2mRD6VO7ZoOH0ug19ZRNMM5q779wqrUCh3AVkJ/ilEAw9rJzjk5180S/DeXUVPAM7iqLq/iUT7Z3982fmMOEa00ahmmuH4H4j5JxVeFYA= _______________________________________________ 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: Transfer data from user space to Kernel space and vice-versa, KEXT.
by Michael Smith 29 May '06

29 May '06

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com On May 29, 2006, at 6:57 AM, Chinki wrote: Read the documentation. = 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.… I am developing KEXT using i/o kit for my usb bulk device and currently stuck while passing the data from "User application" to "Kernel application". How do we get and set data from User space to Kernel Space and vice-versa ?? http://developer.apple.com/documentation/DeviceDrivers/Conceptual/ WritingDeviceDriver/index.html Study especially the section "Making Hardware Accessible to Applications". This email sent to site_archiver(a)lists.apple.com

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Transfer data from user space to Kernel space and vice-versa, KEXT.
by Chinki 29 May '06

29 May '06

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Domainkey-signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:mime-version:content-type; b=fDGMrWdsrVz1DeWaS8yuFj0+qCBlVh7l4HE6cXf+/9C5RmbxeLHnfIm/e9q461O5ur/9UD3tIlSoObdhcOcfXXP8bgbWTzoiFiiixpCXbJQVXy7baC8n2tBIVEPrENms++PxOE55RUirRZvQdbMJJBaglcWWEpweUkAZ9veRuDE= _______________________________________________ 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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