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FS#3323 - Buffalo WZR-600DHP needs kmod-usb-ohci for USB to work #8182

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openwrt-bot opened this issue Sep 5, 2020 · 4 comments
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flyspray kernel pull request/issue with Linux kernel related changes release/19.07 pull request/issue targeted (also) for OpenWrt 19.07 release

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dreamlayers:

In both openwrt-15.05.1-ar71xx-generic-wzr-600dhp-squashfs-tftp.bin and openwrt-19.07.3-ar71xx-generic-wzr-600dhp-squashfs-sysupgrade.bin USB did not work. Power was available at the USB port, but plugging in various USB devices did absolutely nothing. I had to install kmod-usb-ohci to make USB start working.

I feel this is a bug because in 19.07.3 kmod-usb-ehci is already installed. So, one might think that required USB modules are there and something is wrong.

I tried both USB 1.1 and 2.0 high speed devices before. The ohci module is required even to use USB 2.0 high speed devices.

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adrianschmutzler:

Just for other people looking into this:
This is an ar71xx device not supported in ath79 (yet). It's set up in image/legacy.mk there, and I have no idea how packages are selected there.

Probably this will not be fixed for ar71xx anymore.

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dreamlayers:

As far as I can tell the WZR-600DHP target doesn't exist anymore. All ar71xx targets have been dropped in https://git.openwrt.org/?p=openwrt/openwrt.git;a=commit;h=4e4ee4649553ab536225060a27fc320bf54e458c and a new ath79 target hasn't been created for this specific model. Yet WZR-HP-AG300H, which shares the same board apparently, is in ath79. It does have kmod-usb-ohci in https://git.openwrt.org/?p=openwrt/openwrt.git;a=blob;f=target/linux/ath79/image/generic.mk;hb=17e64b9447959858c5c85f7f6c98264775585711#l341 (ie. it is not affected by the same problem).

The WZR-HP-AG300H ath79 firmware did seem to work fine on the WZR-600DHP, but I'm not using it because I'm not clear on what are the differences between the two devices and what might break.

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adrianschmutzler:

The device would be suitable for porting to ath79 as it seems, just somebody has to do it.

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adrianschmutzler:

It appears the device is just identical to WZR-HP-AG300H. I've created a PR to include WZR-600DHP as separate device in ath79 master:
#3411

Would you build and test?

@aparcar aparcar added release/19.07 pull request/issue targeted (also) for OpenWrt 19.07 release kernel pull request/issue with Linux kernel related changes labels Feb 22, 2022
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