Messages in this thread |  | | | Date | Tue, 10 Feb 2004 22:46:05 -0800 | | From | Stephen Hemminger <> | | Subject | Re: Fwd: [Swsusp-devel] Kernel 2.6 pm_send_all() issues. |
Michael Frank wrote:
> This question is probably better suited for LKML. > > ---------- Forwarded Message ---------- > > Subject: [Swsusp-devel] Kernel 2.6 pm_send_all() issues. > Date: Tuesday 10 February 2004 04:06 > From: Wolfgang Glas <wolfgang.glas@ev-i.at> > To: swsusp-devel@lists.sourceforge.net > > Coming back to an earlier post, which states, that NVidia suspend/resume under > 2.6.x could be resurrected, if drivers_suspend() and drivers_resume() in > swsusp.c are tuned in a way, that pm_send_all() is called, I want to direct > the following question to more eligible persons in this list: > > I inspected NVidia's driver and I found out, that it's implemented as a > character device and hence does not implement the suspend/resume kernel > driver interface, which has been introduced in linux-2.6. But nevertheless > this driver has the ability to register its own power management handler > through pm_register(), an interface already present in linux-2.4 and still > used in some 20 drivers present in the linux-2.6.1 code base, most notable > some audio driver and some irda drivers. > > Diving further into the code, I recognized, that the kernel function > ppm_send_all(), which calls all handlers registered through pm_register() is > never called inside of swsusp2.c > > So, what I want to ask is, whether the pm_register/pm_send/pm_send_all > interface is simply deprecated and the NVidia driver (and other drivers, > which use pm_register) should be reeingineered in order to use the > resume/suspend interface of linux-2.6. Or should we try to modify swsusp2.c > in a way, that it additionally calls pm_send_all for these drivers? > > TIA, > > Wolfgang
I sent them a patch that converts the PCI device to the device model and uses suspend/resume hooks. But they didn't seem to put it in the current version - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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