10 More Discussions You Might Find Interesting
I'm writing some serial(UART) handler but have stuck on few issues, maybe anyone can help to show me what I'm doing wrong.
Basically I'm intending to write serial RX signal handler.
Application receives defined packages of data over serial which contains header and payload. Handler... (3 Replies)
Discussion started by: Lauris_k
Hello everyone. I feel that I'm about to answer my own question, but I just want to be sure that I'm right. I know computers all use, at a very low level, the IRQ system of interrupting the CPU when it needs something. My questions are as follows:
1. Does the device in question, say.. a mouse,... (1 Reply)
Discussion started by: Lost in Cyberia
WARNING: at kernel/irq/manage.c:225 __enable_irq+0x3b/0x57()
Unbalanced enable for IRQ 4
Modules linked in: svsknfdrvr
Pid: 634, comm: ash Tainted: G W 2.6.28 #1
... (3 Replies)
Discussion started by: dragonpoint
4. UNIX for Dummies Questions & Answers
I have develop a driver for my hardware and now, I need to handle a IRQ but I does not work.
As I can understand, to handle a irq, it is necessary to make a request_irq(). If the return value is zero, ok, no problem to handle irq.
Here is a easy example of my driver:
#include... (8 Replies)
Discussion started by: webquinty
I am a Linux newbie in kernel development. In class I was asked a question about IRQ distribution as followed.
IRQs can be distributed among the available CPUs (in a multiple-CPU system) in two ways:
(1) Static distribution
The IRQ signal is delivered to the local APICs listed... (2 Replies)
Discussion started by: sunnyhay
I have a SCO 5.0.7 server.As there is no parellel port ,printing is done via USB port.
After loading the Network Card driver ,during booting the server gets hanged and the NIC driver is not loaded.If the USB ports are disabled the NIC driver gets loaded.
As both USB and NIC driver are essential... (0 Replies)
Discussion started by: vikramviky
7. UNIX for Advanced & Expert Users
I want to increase IRQ4 priority to maximum in Fedora core 9 (kernel version 184.108.40.206-97).If anybody knows plz help me....
I will be very thankful ..
Raj (0 Replies)
Discussion started by: rajuprade
8. UNIX for Dummies Questions & Answers
i looked around already and had no luck finding anything.
Im trying ot install a wpc11v3 linksys wireless card, and i have been for about a week now. :mad: Im near certain i have figured out my problem. When i plug in my card while knoppix is running, it crashes. When i plug it into... (0 Replies)
Discussion started by: jestra
9. UNIX for Dummies Questions & Answers
i installed my sound drivers (which are onboard) with the following lines in my kernel
then cd /dev
sh MAKEDEV snd0
output from cat /dev/sndstat show the devicedriver (correct one)
ok this works nice
untill i enter my kde and want to play a... (1 Reply)
Discussion started by: termiEEE
10. UNIX for Dummies Questions & Answers
ENV: linux Version: Mandrake 8.1, PCMCIA card: longshine lcs-8534TB.
(supported according the PCMCIA docs)
laptop is P-II lifetec
PCIC=i82365 ( found via probe -m )
PCIC_OPTS="cs_irq=11 pci_irq_list=11,11 do_scan=0" ( you see i want to force irq 11 )... (3 Replies)
Discussion started by: progressdll