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Questions tagged [realtek]

11 questions
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Is there any way I can fix or avoid errors when installing RTL8812AU driver?

I'm trying to install the Realtek-rtl8812au driver (Archer T4U V3) and I can't do anything because I get stuck at compile. It doesn't matter what package I clone from git or what driver package I am using, I can't compile properly. I tried different…
ASCII404
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What's the difference between streaming mappings and coherent mapping in DMA

According to Linux Device Drivers book author says something like: one have to make sure that DMA address mapping range between Operating system and The hardware should be equal The first question that must be answered before attempting DMA is…
user786
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hci0: Failed to read codec capabilities (-22)

During OS startup I see an error /dev/mapper/vgubuntu-root: clean, 1438749/31105024 files, 57458210/124394496 blo cks [ 3.516030] Bluetooth: hci0: Failed to read codec capabilities (-22) The most interesting thing is that I see this error on the…
mnzsyu
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Unknown symbol "net_log" (err 0)

I tried to compile rtl8188eus driver from aircrack's repo and while compiling I got 1 warning. Here is the full output(output was big): https://pastebin.com/Bh0ZL4Mc Even if I got this warning, I still got 8188eu.ko and when I tried to load it to my…
Running Child
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Packet loss issue with wifi adapter on Debian

I'm experiencing issues with my WiFi adapter on Debian. It appears I'm losing over 60% of packets, which is significantly impacting my internet connection. Here is the relevant information from my system: System information: Linux debian…
Joaquim Mascarell
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Building rtl8189es driver under yocto as out-of-tree module fails

I'm trying to write a recipe for an out-of-tree kernel module for RTL8189FTV SDIO WiFi module located in recommended repo. jwrdegoede/rtl8189ES_linu The module is being built against mainline kernel 5.15.35 kernel/linux-mainline defconfig Here is…
BlameCapitalism
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RPC failed; curl 56 GnuTLS recv error (-9): Error decoding the received TLS packet

While trying to clone a rtl88x2BU Wifi Driver for Ubuntu 20.04 (5.8.0-44-generic), I received the following issue: $ git clone https://github.com/morrownr/88x2bu.git Cloning into '88x2bu'... remote: Enumerating objects: 218, done. remote: Counting…
TexasCujo
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Change network card from RTL8723BE to RTL8822BE

Sorry for my english, I am not really fluent and this is the first question i post on stackoverflow. I'm also a new user of Ubuntu. Hi. I updated the network card, from RTL8723BE to RTL8822BE, on my pc, that mount 2 os (windows 10 and ubuntu 20.04).…
Giuseppe
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What are phy page (physical layer/phy register) as in "phy_write_paged" function

I am reading RTL_ReakTek driver code for NIC driver r8169 and it does some phy registers writing/phy config register writing/ with functions like these pci_write_config_byte(tp->pci_dev, PCI_LATENCY_TIMER, 0x40);// It must be for phy config register…
user786
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Rx descriptor dma mapping in device driver what that actually means, Does it mean mapping of packets at physical NIC to struct object in memory

I am going through realtek r8169 driver and but kind of stuck in this line tp->RxDescArray = dma_alloc_coherent(&pdev->dev, R8169_RX_RING_BYTES, &tp->RxPhyAddr, GFP_KERNEL); From the book Linux device driver, it just says…
user786
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How can I monitor Line In input with Realtek audio? (New Windows driver removed option to unmute it)

I connect a MacBook through a 3.5mm jack cable to another computer's line in input jack in the motherboard which has Realtek Audio (Windows). This enables me to use a pair of speakers connected to this last PC and hear both mac and pc through the…
juanmartin
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