Is Kernel module is the same as a device driver? Post: 302519658

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Operating Systems Linux Fedora Is Kernel module is the same as a device driver? Post 302519658 by Corona688 on Wednesday 4th of May 2011 02:39:47 PM

05-04-2011

Registered User

I don't think looking at the major numbers in a microscope is going to tell you what you want. The whole point of device files is to not have to care about that; they don't have a whole lot to do with what specific driver is being used. They'll tell you broad things about what class of driver, perhaps.

Quote:

Originally Posted by Corona688

The kernel knows what a major+minor number means, but this often just deals with generic input layers like "SCSI disk" -- which these days can mean anything from USB to SATA to PATA, not just actual SCSI. That Linux is now able to treat nearly all disks so identically is mostly a good thing -- device names don't mysteriously change from hda to sda anymore -- but also means it doesn't tell you much about which driver's used.

Try lspci -k, that'll tell you what PCI/AGP/PCIE devices are being claimed by what modules. You can also explore the virtual /sys/ directories to find out more about the devices within.

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LEARN ABOUT NETBSD

uk

UK(4)							   BSD Kernel Interfaces Manual 						     UK(4)

NAME

     uk -- SCSI user-level driver

SYNOPSIS

     uk* at scsibus? target ? lun ?

DESCRIPTION

     The uk driver provides support for a process to address devices on the SCSI bus for which there is no configured driver.

     A SCSI adapter must also be separately configured into the system before this driver makes sense.

KERNEL CONFIGURATION

     If a count is given, that number of uk devices will be configured into the NetBSD kernel.

IOCTLS

     The uk driver has no ioctls of its own but rather acts as a medium for the generic scsi(4) ioctls.  These are described in <sys/scsiio.h>.

FILES

     /dev/uk[0-255]  unknown SCSI devices.

DIAGNOSTICS

     All scsi(4) debug ioctls work on uk devices.

SEE ALSO

     ioctl(2), cd(4), ch(4), scsi(4), sd(4), ss(4), st(4)

HISTORY

     The uk driver appeared in 386BSD 0.1.

BSD
								 October 11, 1993							       BSD