On Mon, 2009-12-21 at 05:52 -0800, Gábor Stefanik wrote: > On Mon, Dec 21, 2009 at 3:44 AM, Zhu Yi <yi.zhu@xxxxxxxxx> wrote: > > On Mon, 2009-12-21 at 10:33 +0800, Guy, Wey-Yi W wrote: > >> For 4965, 40MHz only supported in g band > > > > We don't support 40MHz channels in 2.4G band. See comments in > > iwl-eeprom.h: > > > > * > > * NOTE: 4965 does not support HT40 channels on 2.4 GHz. > > */ > But why does the Windows driver for 4965 support it then? Can you dump your 4965 eeprom and see if the channels in band 6 (2.4GHz 40MHz channel band) are valid? You can use modparam "debug=1" and grep 'HT40' in dmesg. If the flag is 0x0, the channel is marked as invalid by EEPROM. The Linux driver simply excludes the HT40 channel in this case. Thanks, -yi > >> -----Original Message----- > >> From: Valentin Manea [mailto:linux-wireless@xxxxxx] > >> Sent: Sunday, December 20, 2009 05:38 AM Pacific Standard Time > >> To: linux-wireless@xxxxxxxxxxxxxxx > >> Subject: Intel 4965 HT rates > >> > >> Hi, > >> > >> I'm running compat-wireless-2.6.33-rc1 and iw list shows some confusing HT > >> capabilities: > >> Band 1: > >> HT capabilities: 0x082c > >> * 20 MHz operation > >> * SM PS disabled > >> * 20 MHz short GI > >> * max A-MSDU len 7935 > >> > >> but for 802.11a channels: > >> Band 2: > >> HT capabilities: 0x086e > >> * 20/40 MHz operation > >> * SM PS disabled > >> * 20 MHz short GI > >> * 40 MHz short GI > >> * max A-MSDU len 7935 > >> > >> While I can't tell when this happened, I remember older 2.6.29 releases > >> supported HT40 for both bands. > >> The wireless card is an Intel 4965 on a Thinkpad T61. > >> > >> > >> Regards, > >> Valentin > >> > >> -- > >> To unsubscribe from this list: send the line "unsubscribe linux-wireless" in > >> the body of a message to majordomo@xxxxxxxxxxxxxxx > >> More majordomo info at http://vger.kernel.org/majordomo-info.html > >> N�����r��y���b�X��ǧv�^�){.n�+����{��*ޕ�,�{ay� ʇڙ�,j ��f���h���z� �w��� ���j:+v���w�j�m���� ����zZ+�����ݢj"��!�i > > > > > > -- > > To unsubscribe from this list: send the line "unsubscribe linux-wireless" in > > the body of a message to majordomo@xxxxxxxxxxxxxxx > > More majordomo info at http://vger.kernel.org/majordomo-info.html > > > > > -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
