The sound card has no driver. Could you help me! -- Linux general technology-Linux technology and application information. For details, refer to the following section. This is the information I obtained using lspci-v.
00:00. 0 Host bridge: Intel Corporation Mobile PM965/GM965/r Hub (rev 03)
Subsystem: Acer inreceivated [ALI] Unknown device
Flags: bus master, fast devsel, latency 0
Capabilities: [e0] Vendor
Win7 installed, the original in XP working normal USB small speakers but do not work, re-installed sound card driver or the same, later through the following try to finally use.1. Right button on the lower right corner of the horn.2. Click "Play Device".3. Set USB Audio device as the default device.4. Double-click
has 6 devices mounted. According to the actual capacity of the Sound Card, more types of devices can be mounted to the driver, in the include/sound/core. h defines the following device types:
# Definesndrc v_dev_toplevel (_ force snd_device_type_t) 0)
Generally, we are more concerned with PCM and control devices.
3. Driver
Code File structure
In the linux
sndrv_dev_jack (_ force snd_device_type_t) 0x1009)
# Define sndrv_dev_lowlevel (_ force snd_device_type_t) 0x2000)
Generally, we are more concerned with PCM and control devices.
3. Driver
Code File structure
In the linux2.6 code tree, the structure of the Alsa code file is as follows:
Sound/Core/OSS/Seq/Ioctl32/Include/Drivers/I2C/Synth/Emux/PCI/(CARDS)/Isa/(CARDS)/ARM/PPC/ISCSI/USB/PCMCIA/(CAR
If more than one screen, a game to see a movie, and then the game sounds and movies separate output, you can use a dual sound card to complete this function. The general motherboard will bring a onboard sound card, and then you can add a PCI or USB independent
If more than one screen, a game to see a movie, and then the game sounds and movies separate output, you can use a dual sound card to complete this function. The general motherboard will bring a onboard sound card, and then you can add a PCI or USB independent
Sometimes, we feel that integrated sound is not good, at this time, we want to install a sound card
1, first in Taobao to buy a sound card, there is a USB interface, directly inserted on the use, today we want to use
Abstract: USB data acquisition controller is used in PC-based systems. Because of its ease of use and high price ratio, it has occupied a majority of the original data acquisition control card market, not only has it been widely used in OEM equipment, but also has replaced the traditional PLC system in many occasions and is applied to industrial control. This document uses labjack u12 as an example to descr
, ASCII, WMA, AIFF, SND 8/16/32 bit binary format. The optimized FFT algorithm, with fine-parameter mediation and various pre-and post-processing options, has a variety of form options, 0-point fill, power spectrum and PSD automatic averaging, spectral peak measurement. Powerful spectral graphic display, FFT function. Dual channel signal analysis (cross-spectrum, coherence, correction). Signal Filtering (band-pass, low-pass, high-pass). Real-time math operations (add, subtract, multiply, di
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