Windows 2000 and on used IRQ sharing because the OS would allow more and more hardware. There is a set number of IRQs (15 or 16).
CPU
COM2 typically uses IRQ 3. The Interrupt Request (IRQ) is a signal used by hardware devices to get the attention of the CPU. In the case of COM2, which is a communication port, it uses IRQ 3 to communicate with the CPU for data transmission and reception.
LTP1 should use IRQ7.
IRQ Ports 2 & 9 -Taylor
COM1-IRQ 4, memory addresses 03F8-03FF COM2-IRQ 3, memory addresses 02F8-02FF COM3-IRQ 4, memory addresses 03E8-03EF COM4-IRQ 3, memory addresses 02E8-02EF pg. 396
One. A USB hub is plugged in via a USB port, that port only uses 1 IRQ. So all devices on the hub use the same IRQ. You could have a hub with 10 ports still using 1 IRQ.
You need to identify which device the sound card is conflicting with and then find out if you can change the IRQ on one of the devices. If you cannot change the IRQ for one of them, such as via a dip switch or jumper, then you will have to remove one of the devices.
To check IRQ (Interrupt Request) settings in a Linux system, you can use the command cat /proc/interrupts. This command displays a list of all interrupts, their corresponding IRQ numbers, and the associated devices using those interrupts. For a more detailed view, you can also use lspci -vv to see which devices are assigned specific IRQs.
In the context of computer systems, IRQ (Interrupt Request) lines are used by hardware devices to communicate with the CPU. However, there might be instances where you'd prefer certain devices not to use IRQs. If you wish to prevent a PCI (Peripheral Component Interconnect) device from using an IRQ, you generally have to go through the system's BIOS (Basic Input Output System) settings. The BIOS interface varies among manufacturers, but usually, you can access it by pressing a specific key (like F2, F10, or Del) during the system startup. Once in the BIOS settings, look for options related to IRQ assignments for PCI devices. This setting might be under different menus based on the specific BIOS version. Once located, you can change the IRQ settings to manual and then disable the IRQ for the specific PCI slot. Remember that changing BIOS settings should be performed with caution, as incorrect configurations can lead to system instability. Always ensure you understand what each setting does before making adjustments. Also, refer to your motherboard's manual for specific instructions.
The floppy disk drive (FDD) commonly uses IRQ 6. This interrupt request line is designated for the floppy controller, allowing the CPU to manage data transfer between the floppy disk and the system. It's important to ensure that no other devices are using IRQ 6 to avoid conflicts.
CPU
IRQ 0 - System timer. IRQ 1 - Keyboard. IRQ 2 - Cascaded signals from IRQs 8-15. IRQ 3 - COM2 (Default) and COM4 (User) serial ports IRQ 4 - COM1 (Default) and COM3 (User) serial ports IRQ 5 - LPT2 Parallel Port 2 or sound card IRQ 6 - Floppy disk controller IRQ 7 - LPT1 Parallel Port 1 or sound card (8-bit Sound Blaster and compatibles) IRQ 8 - Real time clock IRQ 9 - Free / Open interrupt / Available / SCSI. Any devices configured to use IRQ 2 will actually be using IRQ 9. IRQ 10 - Free IRQ 11 - Free IRQ 12 - PS/2 connector Mouse. IRQ 13 - ISA / Math Co-Processor IRQ 14 - Primary IDE. If no Primary IDE this can be changed IRQ 15 - Secondary IDE These are just a set of standard IRQs. For much more detail check our Ralf Brown's list located at http://www.cs.cmu.edu/~ralf/files.html
IRQ or interupt request : An IRQ allows a device to request certain system resources on priority. Normally, the system allowcates the different non-competing IRQ numbers to different devices. The system allocated IRQs may some times be manually changed. However, it may lead to serious IRQ conflicts resulting in a hung operating system.
Device Manager :)))
IRQ 22 is typically shared by devices such as network interface cards (NICs) and sound cards. The exact devices sharing this IRQ can vary based on the system architecture and configuration. In some cases, it may also include other peripherals like USB controllers, depending on how the hardware is set up. It's essential to check the specific hardware documentation or system settings for precise information.
IRQ I/O address performance level
COM2 typically uses IRQ 3. The Interrupt Request (IRQ) is a signal used by hardware devices to get the attention of the CPU. In the case of COM2, which is a communication port, it uses IRQ 3 to communicate with the CPU for data transmission and reception.