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From: ryanm0 <ryanm0@users.noreply.github.com>
To: ml@inbox.vuxu.org
Subject: Re: Race condition between bcm5974 and usbmouse kernel modules
Date: Mon, 08 Feb 2021 04:30:55 +0100	[thread overview]
Message-ID: <20210208033055.0izuqAAZSvbGNF_b1mhXRNoIr1zWcEmdko4JwxLiu6E@z> (raw)
In-Reply-To: <gh-mailinglist-notifications-41a7ca26-5023-4802-975b-f1789d68868e-void-packages-27465@inbox.vuxu.org>

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New comment by ryanm0 on void-packages repository

https://github.com/void-linux/void-packages/issues/27465#issuecomment-774841514

Comment:
I agree, it probably would be best to avoid disabling that feature if it can be avoided.

Regarding the mouse_ignore list: It looks like the device ID (at least for my trackpad) is already in the hid_mouse_ignore_list (my trackpad has an ID of 05ac:0252 which corresponds to USB_DEVICE_ID_APPLE_WELLSPRING5A_ANSI). If my understanding of what's happening is correct, I think the mouse_ignore list might only be used by the usbhid module, and not by the usbmouse module that we're having a conflict with. I looked through <https://github.com/torvalds/linux/blob/master/drivers/hid/usbhid/hid-core.c> (for the regular usbhid module), and that looks to have code to handle device quirks, including ignoring the device, whereas <https://github.com/torvalds/linux/blob/master/drivers/hid/usbhid/usbmouse.c> (for usbmouse) looks like it doesn't have any of that. I guess that would explain why a lot of other distros blacklist the usbmouse module by default. That being said, I've never touched kernel or driver code, so I could definitely be overlooking something.

If creating a void docs page for this turns out to be the best solution, I could try working on a macbook page like the one @ericonr linked. However, since I have a different model of macbook than the original author of that PR, I've only experienced the trackpad issue and none of the other issues mentioned there.

  parent reply	other threads:[~2021-02-08  3:30 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-12-27  1:07 [ISSUE] " ryanm00
2020-12-31  1:32 ` fosslinux
2020-12-31  1:33 ` fosslinux
2021-02-05  3:07 ` ahesford
2021-02-05  3:14 ` ericonr
2021-02-05  3:43 ` ahesford
2021-02-08  3:30 ` ryanm0 [this message]
2021-02-08  3:34 ` ryanm0
2021-02-08  3:35 ` ryanm0
2022-05-01  2:14 ` github-actions
2022-05-16  2:07 ` [ISSUE] [CLOSED] " github-actions

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