Tag: driver

Qualcomm ath9k 驅動程式解析 (二) – 幾個重要結構

ieee80211_local *local 用途： contains information about the real hardware, and is created when the interface is first added. (Daniel Caps Mur, Linux Wi-Fi open source drivers-mac80211,ath9k/ath5k-, pp.1) each instance of these (hw is embedded into local) represents a wireless driver, ieee80211_hw is the part of the ieee80211_local that is visible to drivers, contains all operating…

2018-09-06
Qualcomm ath9k 驅動程式解析 (一) – 初始化過程

以 linux-4.19-rc2 為例，平台為 TP-Link WDR4300。程式碼以 linux-4.19-rc2 為準，有特別標示者以 OpenWrt/LEDE 為準。 1. ath9k 驅動程式註冊點：ath9k/init.c#ath9k_init(void) static int __init ath9k_init(void) { int error; error = ath_pci_init(); if (error < 0) { pr_err(“No PCI devices found, driver not installed\n”); error = -ENODEV; goto err_out; } error = ath_ahb_init(); if (error < 0) { error = -ENODEV; goto err_pci_exit; } dmi_check_system(ath9k_quirks);…

2018-09-06

Qualcomm ath9k 驅動程式解析 (二) – 幾個重要結構