Hello,
Forgive the newbie question, but I'm having a hard time setting the channel. Here is my output:
======================================
root@OpenWrt:~# iw dev wlan0 info
Interface wlan0
ifindex 7
wdev 0x2
addr 04:f0:21:01:1b:91
type AP
wiphy 0
channel 11 (2462 MHz) NO HT
root@OpenWrt:~# iw reg get
country US:
(2402 - 2472 @ 40), (3, 27)
(5170 - 5250 @ 40), (3, 17)
(5250 - 5330 @ 40), (3, 20), DFS
(5490 - 5600 @ 40), (3, 20), DFS
(5650 - 5710 @ 40), (3, 20), DFS
(5735 - 5835 @ 40), (3, 30)
root@OpenWrt:/# iw dev wlan0 set channel 10
root@OpenWrt:/# iw dev wlan0 set channel 19
command failed: Invalid argument (-22)
==================================================
Any ideas why setting channel to 10 is ok, but setting channel to 19 fails?
I do notice that my phy is split into two parts, Band1 and Band2.
==================================================
root@OpenWrt:~# iw phy phy0 info
Wiphy phy0
Band 1:
Capabilities: 0x11ce
HT20/HT40
SM Power Save disabled
RX HT40 SGI
TX STBC
RX STBC 1-stream
Max AMSDU length: 3839 bytes
DSSS/CCK HT40
Maximum RX AMPDU length 65535 bytes (exponent: 0x003)
Minimum RX AMPDU time spacing: 8 usec (0x06)
HT TX/RX MCS rate indexes supported: 0-15
Frequencies:
* 2412 MHz [1] (27.0 dBm)
* 2417 MHz [2] (27.0 dBm)
* 2422 MHz [3] (27.0 dBm)
* 2427 MHz [4] (27.0 dBm)
* 2432 MHz [5] (27.0 dBm)
* 2437 MHz [6] (27.0 dBm)
* 2442 MHz [7] (27.0 dBm)
* 2447 MHz [8] (27.0 dBm)
* 2452 MHz [9] (27.0 dBm)
* 2457 MHz [10] (27.0 dBm)
* 2462 MHz [11] (27.0 dBm)
* 2467 MHz [12] (disabled)
* 2472 MHz [13] (disabled)
* 2484 MHz [14] (disabled)
Bitrates (non-HT):
* 1.0 Mbps
* 2.0 Mbps (short preamble supported)
* 5.5 Mbps (short preamble supported)
* 11.0 Mbps (short preamble supported)
* 6.0 Mbps
* 9.0 Mbps
* 12.0 Mbps
* 18.0 Mbps
* 24.0 Mbps
* 36.0 Mbps
* 48.0 Mbps
* 54.0 Mbps
Band 2:
Capabilities: 0x11ce
HT20/HT40
SM Power Save disabled
RX HT40 SGI
TX STBC
RX STBC 1-stream
Max AMSDU length: 3839 bytes
DSSS/CCK HT40
Maximum RX AMPDU length 65535 bytes (exponent: 0x003)
Minimum RX AMPDU time spacing: 8 usec (0x06)
HT TX/RX MCS rate indexes supported: 0-15
Frequencies:
* 5180 MHz [36] (17.0 dBm)
* 5200 MHz [40] (17.0 dBm)
* 5220 MHz [44] (17.0 dBm)
* 5240 MHz [48] (17.0 dBm)
* 5260 MHz [52] (20.0 dBm) (passive scanning, no IBSS, radar detection)
* 5280 MHz [56] (20.0 dBm) (passive scanning, no IBSS, radar detection)
* 5300 MHz [60] (20.0 dBm) (passive scanning, no IBSS, radar detection)
* 5320 MHz [64] (20.0 dBm) (passive scanning, no IBSS, radar detection)
* 5500 MHz [100] (20.0 dBm) (passive scanning, no IBSS, radar detection)
* 5520 MHz [104] (20.0 dBm) (passive scanning, no IBSS, radar detection)
* 5540 MHz [108] (20.0 dBm) (passive scanning, no IBSS, radar detection)
* 5560 MHz [112] (20.0 dBm) (passive scanning, no IBSS, radar detection)
* 5580 MHz [116] (20.0 dBm) (passive scanning, no IBSS, radar detection)
* 5600 MHz [120] (disabled)
* 5620 MHz [124] (disabled)
* 5640 MHz [128] (disabled)
* 5660 MHz [132] (20.0 dBm) (passive scanning, no IBSS, radar detection)
* 5680 MHz [136] (20.0 dBm) (passive scanning, no IBSS, radar detection)
* 5700 MHz [140] (20.0 dBm) (passive scanning, no IBSS, radar detection)
* 5745 MHz [149] (30.0 dBm)
* 5765 MHz [153] (30.0 dBm)
* 5785 MHz [157] (30.0 dBm)
* 5805 MHz [161] (30.0 dBm)
* 5825 MHz [165] (30.0 dBm)
Bitrates (non-HT):
* 6.0 Mbps
* 9.0 Mbps
* 12.0 Mbps
* 18.0 Mbps
* 24.0 Mbps
* 36.0 Mbps
* 48.0 Mbps
* 54.0 Mbps
.......
Any ideas as to how I can set wlan0 to the channels in Band2?
Best Regards,
Albert
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