When I connect usb wireless adapter: Bus 002 Device 111: ID 148f:7601 Ralink Technology, Corp. MT7601U Wireless Adapter I notice continuos spamming messages to dmesg output: mt7601u 2-1.3:1.0: rx urb failed: -71 mt7601u 2-1.3:1.0: Error: MCU resp urb failed:-71 mt7601u 2-1.3:1.0: Error: MCU resp evt:0 seq:5-4! and: mt7601u 2-1.3:1.0: Error: mt7601u_mcu_wait_resp timed out mt7601u 2-1.3:1.0: Vendor request req:07 off:0080 failed:-71 mt7601u 2-1.3:1.0: Vendor request req:02 off:0080 failed:-71 mt7601u 2-1.3:1.0: Vendor request req:02 off:0080 failed:-71 mt7601u: probe of 2-1.3:1.0 failed with error -110 and then device is reset,, disconnecting and reconnecting itself in a loop, making mt7601 module to fail probing. This failure happens just only with linux but not with 3.0.x kernel series. Just newer kernel versions are affected. If I make the following changes to drivers/net/wireless/mediatek/mt7601u/phy.c source code, mt7601 module is successfully probed, instead. In order to do that, in mt7601u_init_cal function you have to comment these lines: ret = mt7601u_mcu_calibrate(dev, MCU_CAL_RXIQ, 0); if (ret) return ret; ret = mt7601u_mcu_calibrate(dev, MCU_CAL_DPD, dev->dpd_temp); if (ret) return ret; In mt7601u_phy_recalibrate_after_assoc function you have to comment this line: mt7601u_mcu_calibrate(dev, MCU_CAL_DPD, dev->curr_temp); Waiting for an answer, thanks in advance, Cristian. Sent with ProtonMail Secure Email.
