General :: Write Device Driver For Pen?
Apr 6, 2010If I were asked to write a linux device driver for a pen, How should I start?
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General :: Write A Device Driver For A Pen - Start?
Mar 3, 2010If I were asked to write a linux device driver for a pen, How should I start???
View 5 Replies View RelatedKernel :: Write A USB Device Driver?
Jul 9, 2010Quote:
Originally Posted by anishakaul
When you copy paste the Makefile from post 7, make sure you delete the spaces shown in RED below by Backspace key and then press TAB
Code:
obj-m += hello.o
all:
........make -C /lib/modules/$(shell uname -r)/build M=$(PWD) modules
clean:
........make -C /lib/modules/$(shell uname -r)/build M=$(PWD) clean
how to write a device driver for USB
Programming :: Write USB Device Driver?
Oct 11, 2010I know, I know..."How long is a piece of string"?
I have one of these devices:
[URL]
Of course, it's Windows only, and XP only at that. However, the data that needs transferred between the device and the computer should be fairly basic, unless it offloads a lot of processing to the computer. I'm not a programmer, nor do I play one on TV, but I have written some fairly complicated microcontroller programs and some basic Java GUIs. Besides writing the actual code, how hard is it to do whatever needs done to make a Linux device driver, apart from the code to make the device work?
Networking :: How To Write A Device Driver For Virtual Modem
Nov 25, 2009i have some basic knowledge about device drivers.can any one tell how to write drivers for virtual modem, Actually my project is to implement communication between the two PCs by using two virtual modems. so for that i need to write the code for the virtual modem which it should understand all the AT commands exactly as physical modem and it should send/receive call and SMS.
View 1 Replies View RelatedGeneral :: Make The Root Device Read/write?
Mar 4, 2011I need to change a filename but when I boot up I get the message root device is read-only. Is there a way of changing this so that I can change the filename. I have a Mac Pro running Leopard OSX. The graphics card an NVIDIA 7500GT or driver has failed. It was suggested elsewhere that I change the relevant kext files to filename.kext.old, which I did, now when I try to boot start in OSX I get a message in various languages telling me to restart. I have tried booting in safe mode and from original Installation CD. In Safe Mode I get the same multi language splash screen, from CD I still have the graphic card problem, screen freezes and artifacts appear. So I boot up straight into CLI by holding down CMD-S hoping to be able to change filenames back but it says device read-only.
View 2 Replies View RelatedGeneral :: Write An SPI Driver?
Sep 21, 2009I am keen in understanding the Linux SPI Framework and how to write an SPI Driver.So could anyone kindly show me any good reference for understanding the Linux SPI Framework.
View 2 Replies View RelatedGeneral :: Write A Driver To Access The Hardware?
Nov 23, 2010how to write a driver to access the hardware ,only in the user space in the linux
View 4 Replies View RelatedGeneral :: Hard Drive - Driver Keep Saying 0 Bytes Free And Only Root Can Write?
Nov 26, 2010I have a very very insane problem with my ssd sata harddisk. I did fill the harddisk, and Thunderbird complained about "no space left on device". But even if I delete some files from the harddisk, df will still say 0 blocks free. But it will decrease the number of used blocks. So it looks like it is freeing the blocks and deleting the files, but it don't put the blocks back to the free pool.
But here is where things get insane: If I log in with my normal user, I get a "No free space" when I try to write to the harddisk. But If i log in as root I can write to the file system, despite the fact that df is saying 0 blocks free. I did try to run fsck -f but it just run its test and then say that anything is fine. But it run for less then 10 seconds, is this expected on a 40GB ssd partition?.
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General :: Can Device Driver Work On Windows?
May 2, 2010I am facing a serious problem.. i want a linux-device driver to work on windows is it possible.. see windows has device driver files as .sys and linux has .ko so is it possible..??
View 5 Replies View RelatedFedora Installation :: Device Driver For Usb To Detect Device?
Sep 19, 2009I am currently using fedora 11 kernel 2.6.29 version, i wanted to write device driver for usb to detect my own device. My project is radio with computer. My fm radio get connected to usb port so i need to write h/w interfacing program.
View 1 Replies View RelatedHardware :: USB Device Is Not Claimed By Any Active Driver For Every Device
Nov 10, 2010The error "USB device 6 (vend/prod 0x603/0xf2) is not claimed by any active driver." is in dmesg every time I connect my Logitech keyboard to my system. I also tried (all with the same error):
- Memory stick
- DVD-burner
- Compaq mouse
General :: Identify Previously Installed Device Driver?
Aug 1, 2010How do you determine the source and version of a device driver in your linux box? (The wifi driver, for instance.) In windows you can find that info using "device manager". I suppose there is some corresponding tool in linux.
View 2 Replies View RelatedGeneral :: Possible To Add More Than One Graphic Device Driver To Xorg.conf
Jul 24, 2011Is it possible to add more than one graphic device driver to xorg.conf and it will load automatically? It is important to autodetect because I am using the configuraiton read only. This is because it's a custom LIVE CD.This is what I currently have, and it works!
Problem is if I put my Live CD in my brothers machine, it fails to load because it uses a Radeon driver!I can preinstall the ati packages I need, so all i need to know is how do I make it work?
Ubuntu Installation :: Disk Space - Failes On A "E: Write Error - Write (28 No Space Left On Device)"
Jan 4, 2011df -h [URL] I did the following command to find everything is in /usr or /var, then tracked it down to /usr/lib and /usr/share as the main offenders, but out of all the directories none are more than 1mb or so.
du -sh /* | sort -gr | head -n 5
I tried to uninstall firefox, which is what got me in this mess in the first place, the log claims it will remove ~240 mb but failes on a "E: Write error - write (28 No space left on device)" [URL] If I could juggle something onto an external hard drive so I can uninstall firefox I would be out of the wood. Failing that I believe a new install is in order.
General :: Dynamically Create/delete Device Nodes By Driver?
Apr 15, 2010I'm a starter here in linux, I have written a driver code and in that, I register my character devices by passing 0 for the major number.
To set up I used to use mknod command from terminal to create node,
Is there any method to create node dynamically from driver code during initialization and delete them at cleanup time?
CentOS 5 :: Specify The Device Driver When Mounting A Device?
Jul 28, 2010I have installed live cd on usb pendrive. Everything works great. How can I find out which device driver it is using? Where are the device driver files stored? How do you specify the device driver when mounting a device?
View 3 Replies View RelatedGeneral :: USB Host Controller Device Driver Needed For Slax Live CD
Jan 1, 2011For years I have used a Slax live CD on a laptop to clone internal HDDs to USB HDDs. I recently purchased a Sony VPCF136FM laptop with Intel Core i7 CPU. It apparently has USB 3.0 ports. The problem is the USB ports are dead with Slax. There is a USB devise driver available for Windows 7 from Sony but nothing for Linux operating systems. Can this driver be ported to Linux? It is an exacutable (XXX.exe). The chip for the USB Host is from Renesas Electronics (no help there, either). Where can I find a device driver to use with Slax and how would I install it?
View 3 Replies View RelatedGeneral :: Usb Driver : Ti_usb_3410_5052 - After Adding My Device (MSP430 USB-DEBUG-INTERFACE) It Doesn't Work?
Feb 3, 2011I have problems with my USB driver. After adding my device (MSP430 USB-DEBUG-INTERFACE) it doesn't work.
[ 60.476039] usb 2-2.1: new full speed USB device using uhci_hcd and address 8
[ 60.693959] ti_usb_3410_5052 2-2.1:1.0: TI USB 3410 1 port adapter converter detected
[ 60.693981] ti_usb_3410_5052: probe of 2-2.1:1.0 failed with error -5
I try to do: modprobe ti_usb_3410_5052.No changes.It's Linux
Linux ubuntu 2.6.35-25-generic #44-Ubuntu SMP Fri Jan 21 17:40:44 UTC 2011 x86_64 GNU/Linux
Software :: Control Write To Device?
May 30, 2010Is there a way to log on which time my system writes data to a specific (mounted) device? I have to know what an how much my system writes.
View 1 Replies View RelatedProgramming :: Timer Of 10 Ms For Read / Write A USB Device?
Apr 13, 2011I need programmer a timer of 10 ms for read/write a USB device
View 4 Replies View RelatedFedora Hardware :: SSD - Can't Reset The Device To Make Write-able
Nov 11, 2010I recently added a SS drive and after 2 hours it went into read only and busy mode. The machine see the drive as does tools like fdisk, fsck, qtparted, kde partition manager but I can't reset the device to make it write-able Do I need to RMA the device (it's 12 hours old) or is there a method to make the device usable again?
View 4 Replies View RelatedRed Hat / Fedora :: Cannot Write To Ramdisk - No Space Left On Device?
Jul 7, 2011I am trying to write to a Ramdisk because I suffer from terrible IO speeds on my VPS. It uses openVZ and I run a Centos 5 distro.
So i created my ramdisk with '/bin/mount -t tmpfs -o size=1G,nr_inodes=10k,mode=0775,noatime,nodiratime tmpfs /tmp'
but whenever I try and copy files to it, it just spams me with 'no space left on device even though there is!
Here is the output of df:
/dev/simfs 157286400 6511452 150774948 5% /
none 16441412 4 16441408 1% /dev
tmpfs 5242880 1296 5241584 1% /disk/test
tmpfs 5242880 1296 5241584 1% /disk/test
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Programming :: Block On Write Call To TtyACM Device
Nov 1, 2010I have a write call to a ttyACM serial device that blocks after several hundreds bytes are written.I'm writing in ~25 byte chunks, so I have 5-8 successful writes, then the next write blocks forever.I can bypass the blocked call using select, but I can never call write again without closing and re-opening the port.
The serial port is opened correctly because I can read from it just fine. Write permissions are correct, and it's opened RW.The code is likely correct because I tested the same code using the same device on a pure RS-232 serial port, and it worked fine - no block. Is there anything to know about the linux ACM module?It's my understanding that write calls basically shouldn't block.They're supposed to return -1 if there's an error.
Programming :: Fail To Write To USB Device Boot Sector / What To Do?
Jul 4, 2010I'm writing a C program that reads the boot sector of a USB disk. (it is mounted as /dev/sda1). I'm able to read the sector, by the calls code...
The problem is when I wish to write. I use the call:
bytesWrite = write(fd, buf, 512)
The 'write' returns the value of 512, which looks as if the write was successful, yet
when I read again the /dev/sda1 device, I see that no writing was actually made.
Can anybody tell me what do I need to do in order to allow an actual write to the
device?
Programming :: RHEL5 - Project To Write Device Drivers
Dec 1, 2010I am final year MCA student. I like to do my project in Linux. I know a little in C. I am pursuing RHCE certification. I am using rhel5. I am interested to write linux device drivers and willing to do my project in that.
View 9 Replies View RelatedOpenSUSE Hardware :: Finding A External USB CD/DVD Read/write Device?
Jul 30, 2011My wife is purchasing a netbook with no internal CD/DVD writing device, so we plan to purchase an external CD/DVD USB-2.0 read/write device. Our local PC shop has the following 3 external USB-2.0 DVD read/write devices:
(a) Samsung DVD-Burner SE-S084F/RSBS [not listed on Samsung site - too old ? ]
(b) LG DVD-Burner GE24NU21 USB2.0 [not listed on LG site - too old ? ]
(c) Super-Multi Portable DVD Rewrite (GP10 Lite USB2.0 Slimline) GP10NB20 (mentions Mac OS/X support, which is encouraging)
None of those are listed in the openSUSE HCL. Has anyone successfully used any of these with GNU/Linux (my google surfing on this revealed no GNU/Linux complaint nor any success stories) ? Or is there another such external USB-2.0 read/write DVD burner device that is recommended ?
OpenSUSE Install :: How To Browse 11.3 CD - Block Device Write Protected
Jul 15, 2010I can browse the iso image easily enough with a loopback mount, but when it comes to mounting the actual CD (which I did first), I get:
Code:
$ sudo mount -t udf,iso9660 /dev/dvd /mnt/dvd
mount: block device /dev/dvd is write-protected, mounting read-only
mount: wrong fs type, bad option, bad superblock on /dev/dvd,
missing codepage or other error
In some cases useful info is found in syslog - try
dmesg | tail or so
/var/log/messages isn't very helpful, either:
Code:
Jul 15 15:15:56 bkorb-dt kernel: attempt to access beyond end of device
Jul 15 15:15:56 bkorb-dt kernel: sr0: rw=0, want=68, limit=4
Jul 15 15:15:56 bkorb-dt kernel: isofs_fill_super: bread failed, dev=sr0, iso_blknum=16, block=16
$ md5sum openSUSE-11.3-DVD-x86_64.iso
adf5d2a0a03c1e3aaf102fd6a4771b87 openSUSE-11.3-DVD-x86_64.iso
I burned it with K3B and it gets the same result trying to mount it. K3B seems to know that the image is an iso9660 and is able to display the various 9660 id fields just fine. It just won't mount.
Ubuntu :: Unable To Mount Device, Write Protected & Read Only?
Feb 17, 2011I used dual booting with Windows Xp and Ubuntu 10.04. Because errors, I reinstall Windows and then I could not enter GRUB, and Ubuntu partition disappear. I tried to reinstall ubuntu using live CD but I could not detect last ubuntu partitions. After I installed fresh Ubuntu on new partition, I got error message like this:
Unable to mount floppy0 Mount: block device /dev/fd0 is write protected, mounting read-only Mount: could not determine the file system type, and none was specified
Programming :: Write An USB Driver On 2.6.x ?
Jul 16, 2010I want to learn to write an USB driver on linux 2.6.x I tried to find some documents but i could not find documents for it . Most of it gave direct driver code as reference.
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