linux-kernel - Re: Show module version sysfs file for built-in modules?

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Date:	Wed, 29 Jul 2009 20:40:39 +0200
From:	devzero@....de
To:	Tomas Carnecky <tom@...ervice.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: Show module version sysfs file for built-in modules?

what about this ?

neoware:/sys/module/8139too # cat /sys/module/8139too/version
0.9.28

neoware:/sys/module/8139too # modinfo 8139too |grep "^version:"
version:        0.9.28

the latter should work completely without consulting the kernel for that information. 

regards
roland

>List:       linux-kernel
>Subject:    Show module version sysfs file for built-in modules?
>From:       Tomas Carnecky <tom () dbservice ! com>
>Date:       2009-07-24 19:08:51
>Message-ID: 5A77D882-B628-4105-85A3-ADE423BBD9F8 () dbservice ! com
>[Download message RAW]
>
>Some userspace tools check /sys/modules/XYZ/version to determine  
>whether the required module is available and the version compatible  
>with the userspace tool. But that sysfs file is not shown when the  
>module is built into the kernel (as opposed being a loadable module).  
>Is there a reason for that behavior? Or is there another way for  
>userspace to check the presence and version of a module?
>The userspace tool in question here is the open-iscsi daemon (iscsid)  
vwhich checks /sys/modules/scsi_transport_iscsi/version and refuses to  
>start if that file doesn't exist.
>
>thanks
>tom

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