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Linux Driver avalibility for TUSB8040 and TUSB2046B

Charles Smith
Prodigy 140 points
Other Parts Discussed in Thread: TUSB2046B, TUSB8040, TUSB2077A, AM3874

Can anyone tell me the available of Linux Driver support for the TUSB8040 and TUSB2046B? 

  • 0
    TI__Guru* 76130 points

    For the TUSB2046B, we do not provide any Linux driver, any Linux with USB stack support will be compatible with the TUSB2046B.

    I will investigate what about the TUSB8040.

    Regards.

  • 0
    TI__Genius 16430 points

    Charles,

    Linux has native support for USB hubs - no additional drivers are needed.

    To realize the full potential of the TUSB8040, you will need to insure you have a SuperSpeed USB (USB 3.0) host controller as well as insure you include the Linux xHCI stack in your kernel.

  • 0 in reply to DHarmon
    Prodigy 10 points

    Hello,

    I’m using TUSB8040 device. With Linux kernel 2.6.16. on power up the devices are detected by the kernel and are valid to be used. The kernel fails to detect devices that are connected when board initialization end. E.g. plug and play is not working. The USB is working from its defaults without external eeprom. I loaded the internal register dump to provide most information I can supply.

    Q – does the usb hub needs special configuration for plug and play devices.

    Q – Does the kernel has special treatment for this hub

    [0000] f8 00 00 40 80 7c 00 0f 0f 00 00 00 00 00 00 00

    [0016] 00 00 1e 4d 40 88 d2 5d ac 13 d8 9d 0d a0 1a 00

    [0032] 09 04 00 00 00 00 00 00 00 00 00 00 00 00 00 00

    [0048] 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

    [0064] 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

    [0080] 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

    [0096] 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

    [0112] 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

    [0128] 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

    [0144] 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

    [0160] 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

    [0176] 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

    [0192] 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

    [0208] 0e 0e 0e 0e 0e 00 00 00 0a 0a 0a 0a 0a 00 00 00

    [0224] 04 04 04 04 04 00 00 00 73 73 73 73 73 00 00 00

    [0240] 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

    Thank you for your help

    Yaniv Lankry

  • 0 in reply to Yaniv Lankry
    TI__Genius 16430 points

    How are you powering the downstream ports?

  • 0 in reply to DHarmon
    Intellectual 345 points

    Hello DHarmon,

    So the TUSB2046B and TUSB2077A will work with linux native drivers on AM3874 rinning on Sdk 5.04?

    How many endpoints can i get per usb port?

    so how many devices can i attache using hubs on my usb port?

    Thank you

  • 0 in reply to Guilherme Haas
    TI__Guru* 76130 points

    Hello,

    USB specification allows up to 5 tiers of hubs, so you can have up to 128 devices connected at one time.

    Regards.