From mboxrd@z Thu Jan 1 00:00:00 1970 From: Greg KH Date: Fri, 30 Apr 2004 21:56:21 +0000 Subject: Re: [PATCH] Hotplug for device power state changes Message-Id: <20040430215621.GA14015@kroah.com> List-Id: References: <20040429202654.GA9971@dhcp193.mvista.com> <20040429224243.L16407@flint.arm.linux.org.uk> <40918375.2090806@mvista.com> <1083286226.20473.159.camel@gaston> <20040430093012.A30928@flint.arm.linux.org.uk> <4092B02C.5090205@mvista.com> In-Reply-To: <4092B02C.5090205@mvista.com> MIME-Version: 1.0 Content-Type: text/plain; charset="macroman" Content-Transfer-Encoding: base64 To: Todd Poynor Cc: Russell King , Benjamin Herrenschmidt , Patrick Mochel , linux-hotplug-devel@lists.sourceforge.net, Linux Kernel list T24gRnJpLCBBcHIgMzAsIDIwMDQgYXQgMTI6NTk6NDBQTSAtMDcwMCwgVG9kZCBQb3lub3Igd3Jv dGU6Cj4gCj4gKiBDaGFuZ2VzIHRvIGtvYmplY3QgdG8gYWxsb3cga29iamVjdCBob3RwbHVnIHRv IG9wdGlvbmFsbHkgYmUgCj4gc3luY2hyb25vdXMgaWYgZGVzaXJlZC4gIEknZCBhc3N1bWUgdGhp cyBpcyBhIG5ldyBob3RwbHVnX29wcyBmaWVsZC4KCkljay4KCj4gKiBTeW5jaHJvbm91cyBob3Rw bHVnIGV2ZW50cyBmb3Igc3lzdGVtIHN1c3BlbmQgYW5kIHJlc3VtZSAod2l0aG91dCAKPiBpbmRp dmlkdWFsIGRldmljZSBub3RpZmljYXRpb25zKS4gIFRoZXNlIGV2ZW50cyBjYW4gcHJvYmFibHkg YmUgCj4gZ2VuZXJhdGVkIGJ5IHRoZSBrb2JqZWN0IGhvdHBsdWcgbWV0aG9kcyBieSB0aGUgZXhp c3RpbmcgcG93ZXIgc3Vic3lzIAo+IChvbmNlIHRoZSBhYm92ZSBlbmhhbmNlbWVudCBpcyBpbiBw bGFjZSkuCgpCdXQgd2h5PyAgRG8geW91IHJlYWxseSBuZWVkIHRoaXM/ICBIYXZlIHlvdSBhY3R1 YWxseSB0ZXN0ZWQgYSBzeXN0ZW0gdG8Kc2VlIGlmIGl0IGlzIG5lZWRlZD8KCnRoYW5rcywKCmdy ZWcgay1oCgoKLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0t LS0tLS0tLQpUaGlzIFNGLk5ldCBlbWFpbCBpcyBzcG9uc29yZWQgYnk6IE9yYWNsZSAxMGcKR2V0 IGNlcnRpZmllZCBvbiB0aGUgaG90dGVzdCB0aGluZyBldmVyIHRvIGhpdCB0aGUgbWFya2V0Li4u IE9yYWNsZSAxMGcuIApUYWtlIGFuIE9yYWNsZSAxMGcgY2xhc3Mgbm93LCBhbmQgd2UnbGwgZ2l2 ZSB5b3UgdGhlIGV4YW0gRlJFRS4gCmh0dHA6Ly9hZHMub3Nkbi5jb20vP2FkX2lkMTQ5JmFsbG9j X2lkgTY2Jm9wPWNsaWNrCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fCkxpbnV4LWhvdHBsdWctZGV2ZWwgbWFpbGluZyBsaXN0ICBodHRwOi8vbGludXgtaG90 cGx1Zy5zb3VyY2Vmb3JnZS5uZXQKTGludXgtaG90cGx1Zy1kZXZlbEBsaXN0cy5zb3VyY2Vmb3Jn ZS5uZXQKaHR0cHM6Ly9saXN0cy5zb3VyY2Vmb3JnZS5uZXQvbGlzdHMvbGlzdGluZm8vbGludXgt aG90cGx1Zy1kZXZlbA== From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261528AbUD3V51 (ORCPT ); Fri, 30 Apr 2004 17:57:27 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261568AbUD3V51 (ORCPT ); Fri, 30 Apr 2004 17:57:27 -0400 Received: from mail.kroah.org ([65.200.24.183]:30911 "EHLO perch.kroah.org") by vger.kernel.org with ESMTP id S261528AbUD3V50 (ORCPT ); Fri, 30 Apr 2004 17:57:26 -0400 Date: Fri, 30 Apr 2004 14:56:21 -0700 From: Greg KH To: Todd Poynor Cc: Russell King , Benjamin Herrenschmidt , Patrick Mochel , linux-hotplug-devel@lists.sourceforge.net, Linux Kernel list Subject: Re: [PATCH] Hotplug for device power state changes Message-ID: <20040430215621.GA14015@kroah.com> References: <20040429202654.GA9971@dhcp193.mvista.com> <20040429224243.L16407@flint.arm.linux.org.uk> <40918375.2090806@mvista.com> <1083286226.20473.159.camel@gaston> <20040430093012.A30928@flint.arm.linux.org.uk> <4092B02C.5090205@mvista.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4092B02C.5090205@mvista.com> User-Agent: Mutt/1.5.6i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Apr 30, 2004 at 12:59:40PM -0700, Todd Poynor wrote: > > * Changes to kobject to allow kobject hotplug to optionally be > synchronous if desired. I'd assume this is a new hotplug_ops field. Ick. > * Synchronous hotplug events for system suspend and resume (without > individual device notifications). These events can probably be > generated by the kobject hotplug methods by the existing power subsys > (once the above enhancement is in place). But why? Do you really need this? Have you actually tested a system to see if it is needed? thanks, greg k-h