252 CENT ASSIGN 16
HARDWARE AND DEVICE CONFIGURATION
NAME _________________
Part 1: Collect the following information about your machine's hardware, and store it in the specified files. Each file should contain a single word answer. File ~/lab16.1/cpuspeed ~/lab16.1/cpucache ~/lab16.1/memsize ~/lab16.1/nicdriver ~/lab16.1/numide Contents The speed of your current processor, in megahertz. The size of your CPU's cache, in kilobytes. The amount of physical memory, in megabytes. The name of the kernel module that is serving as the device driver for your eth0 network interface. (If you do not have an interface eth0, just put the word "none"). The number of currently connected IDE drives on your machine.
If you have performed the exercise correctly, you should be able to generate output similar to the following.
[student@station student]$ head lab16.1/* ==> lab16.1/cpucache <== 256 ==> lab16.1/cpuspeed <== 697.867 ==> lab16.1/memsize <== 255 ==> lab16.1/nicdriver <== 3x59x ==> lab16.1/numide <==
Part 2: Collect the following information about your machine's hardware, and store it in the specified files. Each file should contain a single word answer. File ~/lab16.2/irq1 ~/lab16.2/fpuports ~/lab16.2/videoram Contents The name of the device which is using interrupt request line 1 (IRQ 1). The range of I/O ports which are being used by your machine's fpu. device. The range of physical addresses being used by your machine's Video RAM area..
If you have performed the lab correctly, you should be able to generate output similar to the following. (Do not be concerned if your actual values differ).
[student@station student]$ head lab16.2/* ==> lab16.2/fpuports <== 00e0-00ef ==> lab16.2/irq1 <== rtc ==> lab16.2/videoram <== 000c0000-000c7fff
Part 3: The file /lib/modules/kernel-version/modules.usbmap (where kernel-version is replaced with your current kernel version) contains an ASCII database of USB kernel modules, and vendor and device ID's of the devices to which they relate. The first 20 characters of each line contains the name of the kernel module. (If you are unsure of the version of your currently running kernel, the command uname -r will display it for you.) Use some combination of the cut, sort, uniq, grep, and head commands to generate a table of the 10 most commonly referenced kernel USB modules, preceded by the number of times they are referenced. Store the table in the file ~/lab16.3/usbmodules.
CENT 252
HONOLULU COMMUNITY COLLEGE
1 of 2
CENT 252 ASSIGN 16
HARDWARE AND DEVICE CONFIGURATION
NAME _________________
If you have completed the lab correctly, you should be able to generate output similar to the following. Do not be concerned if the frequency counts or module names differ.
[student@station student]$ cat lab16.3/usbmodules 170 scanner 110 usb-storage 61 pegasus 35 ipaq 33 kaweth 30 iofiedgeport 24 keyspan 20 wacom 20 pwc 19 visor
Part 4: In this part of the lab, you will explore device nodes. 1. Create the file ~/lab16.4/block-3-0, which contains the name of the block device node associated with major number 3, minor number 0. Refer to the file using an absolute reference. 2. Create the file ~/lab16.4/char-1-8, which contains the name of the character device node associated with major number 1, minor number 8. Refer to the file using an absolute reference. 3. Create the file ~/lab16.4/cdrom, which contains the name of the device node to which the symbolic link /dev/cdrom resolves. Refer to the file using a relative reference (i.e., without the /dev/). If your machine does not have a CD-ROM drive (or if the file /dev/cdrom does not exist), simply put the word "none". 4. Use the mknod command to create the device node ~/lab16.4/myfd0. The ...