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作者 wens 在 PTT [ LinuxDev ] 看板的留言(推文), 共90則
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收起看板(651)
2F推: 可以去看 Bootlin 的課程跟投影片03/09 01:45
5F→: 你就直接 git log --oneline 看那個目錄下多數的 commit 用05/03 23:12
6F→: 什麼格式，就跟著用就對了05/03 23:12
7F→: 例如: ARM: dts: rockchip: xxx05/03 23:13
8F→: 或是: arm64: dts: mediatek: xyz05/03 23:13
9F→: 然後沒有工具會檢查 subject 格式, 而且各subsystem不盡相同05/03 23:14
1F→: headers 是讓你編 out-of-tree module 用的05/19 22:45
2F→: 或是 dkms 用05/19 22:45
3F→: 2. 因為那是 kernel 內部用，userspace不會用到05/19 22:45
1F→: 幹嘛要 restart? ntpd 有跑著並且有正常連到上游就會一直是04/25 22:12
2F→: 有同步的狀態啊04/25 22:12
9F→: NTP server 就算鎖定了也是慢慢skew clock，沒那麼快...05/05 10:09
8F推: 設成 peripheral 而不是 otg 就是因為你的孔不是標準 OTG01/29 10:25
9F→: 所以要強制讓他變成 gadget mode 罷了01/29 10:25
10F→: 這是 spec 之外的用法，不見得 kernel driver 會讓你這樣搞01/29 10:26
11F→: 因為控制器的驅動程式通常還會檢查 vbus 之類的，而這在你的01/29 10:27
12F→: 情境下可能是 always on ，那系統就不會偵測到有線插上01/29 10:27
9F→: 如果你只是要 按鈕 -> LED 那也可以用 ledtrig-gpio10/06 14:17
1F→: 既然都 kernel panic 了，stack trace 研究一下吧...06/14 17:24
4F→: foo = $(bar) 這種是使用 foo 時才會遞迴展開02/03 13:47
5F→: ugh := Huh 或 ugh := $(xyz) 這種 := 指定是立即遞迴展開02/03 13:48
6F→: 說明都有講解，麻煩使用手冊讀一讀02/03 13:48
7F→: 因為你只有select沒有read. select只是告訴你有沒有資料可以12/05 11:21
8F→: 讀取。真的要讀取要另外read。12/05 11:21
2F→: 有硬體解碼還是會lag，因為瀏覽器顯示到 X 上還是有記憶體09/10 06:32
3F→: 搬動/複製的效能問題09/10 06:32
4F→: LibreELEC可能是直接拿display的overlay去顯示影片，既不需09/10 06:33
5F→: 搬動資料，也不需要做縮放或影像格式轉換09/10 06:33