diff options
| author | Bitterblue Smith <rtl8821cerfe2@gmail.com> | 2024-07-11 00:11:33 +0200 |
|---|---|---|
| committer | Ping-Ke Shih <pkshih@realtek.com> | 2024-07-17 06:19:59 +0200 |
| commit | 315c23a64e99552502dd4d18d6ddc073fad9a7c3 (patch) | |
| tree | 458aead5aa5383deeabb1e152982a1171bb12b5a /drivers/net/wireless/realtek/rtw88/rtw8822b.c | |
| parent | wifi: rtw89: 8852bt: rfk: Fix spelling mistake "KIP_RESOTRE" -> "KIP_RESTORE" (diff) | |
| download | linux-315c23a64e99552502dd4d18d6ddc073fad9a7c3.tar.xz linux-315c23a64e99552502dd4d18d6ddc073fad9a7c3.zip | |
wifi: rtw88: usb: Support USB 3 with RTL8822CU/RTL8822BU
The Realtek wifi 5 devices which support USB 3 are weird: when first
plugged in, they pretend to be USB 2. The driver needs to send some
commands to the device, which make it disappear and come back as a
USB 3 device.
Implement the required commands in rtw88.
When a USB 3 device is plugged into a USB 2 port, rtw88 will try to
switch it to USB 3 mode only once. The device will disappear and come
back still in USB 2 mode, of course.
Some people experience heavy interference in the 2.4 GHz band in
USB 3 mode, so add a module parameter switch_usb_mode with the
default value 1 to let people disable the switching.
Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
Acked-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/77906c62-5674-426f-bde1-1b2a12a0339d@gmail.com
Diffstat (limited to 'drivers/net/wireless/realtek/rtw88/rtw8822b.c')
| -rw-r--r-- | drivers/net/wireless/realtek/rtw88/rtw8822b.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/wireless/realtek/rtw88/rtw8822b.c b/drivers/net/wireless/realtek/rtw88/rtw8822b.c index 2456ff242818..6edb17aea90e 100644 --- a/drivers/net/wireless/realtek/rtw88/rtw8822b.c +++ b/drivers/net/wireless/realtek/rtw88/rtw8822b.c @@ -46,6 +46,7 @@ static int rtw8822b_read_efuse(struct rtw_dev *rtwdev, u8 *log_map) map = (struct rtw8822b_efuse *)log_map; + efuse->usb_mode_switch = u8_get_bits(map->usb_mode, BIT(7)); efuse->rfe_option = map->rfe_option; efuse->rf_board_option = map->rf_board_option; efuse->crystal_cap = map->xtal_k; |