Windows 10: How to read/write registers by a sound wire bus driver?

Hi, All: I am developing a kernel driver for an amplifier device. I find a intel NUC 15 notebook that supports the soundwire bus. I notice that there is a device that is named as "Intel Smart Sound Technology for MIPI SoundWire Audio" in the device manager and I think it is the soundwire bus device. I use the SoundWireController.h that is in the WDK 26100 to develop a virtual driver. In the virtual driver, I send a IOCTL_SOUNDWIRE_READ_REGISTERS device IO control to the soundwire bus driver, but it returns STATUS_UNSUCCESSFULLY. I can not find any documents about how to use SoundWireControl

:)

 

Write register

Hi@all.

I just recognized the features "write register" (below read register). What is this option for and what could happen, if I play around with that?? Is there a documentation what is useful to write in it and what not?

Thanks!
cheers
Fresh

 

Write register

there is no documentation for these features, they are for debugging purposes, one writes a gpu register, the other one reads it

 

Slow HDD read and write speeds

Hi,

Thank you for writing to Microsoft Community Forums.

We will require a few more information from you to help you further with the issue. Please reply with the following details:

• In which device are you facing this issue?
  
• Are you using an external HDD or internal HDD?
  
• Are you getting the read and write speed issue on any particular application?
  

However, you can Disk Defragment on your computer to optimize the drive. To run Disk Defragment please follow the steps from the article

Defragment your Windows 10 PC.

Alternatively, you can check for the read and write speed of the HDD in task manager. Please follow the steps mentioned below to check the read and write speed of the hard drive:

1. Press Ctrl + Shift + Esc key together on the keyboard.
   
2. Click on Performance tab.
   
3. Click on Disk 0.
   
4. You will find the Read speed and
   Write speed at the bottom of the window.
   

Hope it helps.

Please reply with the status of the issue, we will be glad to help you further.

Nikhar Khare

Microsoft Community - Moderator