Testing to see if a driver is loaded
in [Kernel]
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From: Robert Emanuele on 13 Jun 2010 00:40 Greetings once again, I was wondering if there is a simple way to test if a driver is loaded from within another driver's probe? I have one driver that depends on another. I see several *_find_device functions in include/linux/device.h. I haven't found a "find driver" nor an arbitrary way of doing that. Thanks for any guidance, Rob -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo(a)vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
From: Robert Emanuele on 14 Jun 2010 15:10 Hi Raj, I appreciate the thought, but if you read my email closely you'll see that I was looking for how to find if a driver is loaded into the kernel (module or not) from within another driver's probe function. --Rob On Sun, Jun 13, 2010 at 11:48 PM, Raj singh <linux.rajsingh(a)gmail.com> wrote: > Hi , > ������� You can use lsmod command... > > login as root & type lsmod | head -10...it will show you a list of drivers > currently loaded in your kernel.... > > > Raj. > > On Sun, Jun 13, 2010 at 10:03 AM, Robert Emanuele <rob(a)emanuele.us> wrote: >> >> Greetings once again, >> >> I was wondering if there is a simple way to test if a driver is loaded >> from within another driver's probe? �I have one driver that depends on >> another. �I see several *_find_device functions in >> include/linux/device.h. �I haven't found a "find driver" nor an >> arbitrary way of doing that. >> >> Thanks for any guidance, >> >> Rob >> -- >> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in >> the body of a message to majordomo(a)vger.kernel.org >> More majordomo info at �http://vger.kernel.org/majordomo-info.html >> Please read the FAQ at �http://www.tux.org/lkml/ > > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo(a)vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
From: Robert Hancock on 14 Jun 2010 20:00 On 06/12/2010 10:33 PM, Robert Emanuele wrote: > Greetings once again, > > I was wondering if there is a simple way to test if a driver is loaded > from within another driver's probe? I have one driver that depends on > another. I see several *_find_device functions in > include/linux/device.h. I haven't found a "find driver" nor an > arbitrary way of doing that. > > Thanks for any guidance, There's not a simple answer, it depends what you are trying to achieve (i.e. in what way is the driver dependent on the other one..) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo(a)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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