What surprises me is that if the LLDD *can't* get to know about the hot plugging / unplugging of device, what is the use of the functions scsi_add_device() and scsi_remove_device()??
Please note that these functions are provided by scsi mid-level driver to LLDD to add / remove devices (Refer to Documentation/scsi/scsi_mid_low_api.txt). Thanks & Regards, Rajat Jain HCL Technologies, A-11, Sector 16, Noida-201301. Ph: +91-120-2510701/702/813 Extn.3159 [EMAIL PROTECTED] http://www.hcltech.com/ "...one of the main causes of the fall of the Roman Empire was that, lacking zero, they had no way to indicate successful termination of their C programs." Robert Firth -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Matthew Wilcox Sent: Tuesday, March 01, 2005 8:16 PM To: Zhao, Forrest Cc: linux-scsi@vger.kernel.org; Caushik, Ramesh Subject: Re: One question about SCSI device hotplug On Tue, Mar 01, 2005 at 05:06:55PM +0800, Zhao, Forrest wrote: > If I surprisingly hot-remove a SCSI disk from HBA manually without > executing "echo "scsi remove-single-device <h> <b> <t <l>" > > /proc/scsi/scsi", can the "hotplug" > event be notified to SCSI mid-layer or user space? > > I briefly browse some code of LLDD, it seems that LLDD never report > "hotplug" event to upper-level layer. Am I right? I don't think it *can* ... the SCSI protocols don't tell the host "hey, this device has disappeared". -- "Next the statesmen will invent cheap lies, putting the blame upon the nation that is attacked, and every man will be glad of those conscience-soothing falsities, and will diligently study them, and refuse to examine any refutations of them; and thus he will by and by convince himself that the war is just, and will thank God for the better sleep he enjoys after this process of grotesque self-deception." -- Mark Twain - To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html - To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
