ARM板上连接USB无线网卡问题Could not flush host TX fifo

pingdavinci_interrupt 354: VBUS error workaround (delay coming) # RTUSB_VendorRequest failed(-110),TxFlags=0x0, ReqType=IN, Req=0x7, Idx=0x1718,pA d->Flags=0x30000002 # RTUSB_VendorRequest failed(-110),TxFlags=0x0, ReqType=IN, Req=0x7, Idx=0x1718,pA d->Flags=0x30000002 # RTUSB_VendorRequest failed(-110),TxFlags=0x0, ReqType=IN, Req=0x7, Idx=0x500,pAd ->Flags=0x30000002 musb_h_tx_flush_fifo 124: Could not flush host TX fifo: csr: 000a # musb_h_tx_flush_fifo 124: Could not flush host TX fifo: csr: 000a # musb_h_tx_flush_fifo 124: Could not flush host TX fifo: csr: 000a # musb_h_tx_flush_fifo 124: Could not flush host TX fifo: csr: 000a davinci_interrupt 354: VBUS error workaround (delay coming) # musb_h_tx_flush_fifo 124: Could not flush host TX fifo: csr: 000a # musb_h_tx_flush_fifo 124: Could not flush host TX fifo: csr: 000a # musb_h_tx_flush_fifo 124: Could not flush host TX fifo: csr: 000a davinci_interrupt 354: VBUS error workaround (delay coming) # musb_h_tx_flush_fifo 124: Could not flush host TX fifo: csr: 000a # musb_h_tx_flush_fifo 124: Could not flush host TX fifo: csr: 000a # musb_h_tx_flush_fifo 124: Could not flush host TX fifo: csr: 000a davinci_interrupt 354: VBUS error workaround (delay coming) # RTUSB_VendorRequest failed(-110),TxFlags=0x0, ReqType=OUT, Req=0x2, Idx=0x500,pA d->Flags=0x30000002 Request Value=0x02f6! root@59.64.150.97:/opt/dvsdk/dm365# musb_h_tx_flush_fifo 124: Could not flush ho st TX fifo: csr: 000a # musb_h_tx_flush_fifo 124: Could not flush host TX fifo: csr: 000a # musb_h_tx_flush_fifo 124: Could not flush host TX fifo: csr: 000a # musb_h_tx_flush_fifo 124: Could not flush host TX fifo: csr: 000a # musb_h_tx_flush_fifo 124: Could not flush host TX fifo: csr: 000a # musb_h_tx_flush_fifo 124: Could not flush host TX fifo: csr: 000a # musb_h_tx_flush_fifo 124: Could not flush host TX fifo: csr: 000a # musb_h_tx_flush_fifo 124: Could not flush host TX fifo: csr: 000a # musb_h_tx_flush_fifo 124: Could not flush host TX fifo: csr: 000a # musb_h_tx_flush_fifo 124: Could not flush host TX fifo: csr: 000a # RTUSB_VendorRequest failed(-110),TxFlags=0x0, ReqType=OUT, Req=0x2, Idx=0x1808,p Ad->Flags=0x30000002 Request Value=0x0000! # # RTUSB_VendorRequest failed(-110),TxFlags=0x0, ReqType=IN, Req=0x7, Idx=0x1718,pA d->Flags=0x30000002 musb_h_tx_flush_fifo 124: Could not flush host TX fifo: csr: 000a # musb_h_tx_flush_fifo 124: Could not flush host TX fifo: csr: 000a # musb_h_tx_flush_fifo 124: Could not flush host TX fifo: csr: 000a #

应该是你的USB口供电不足，看看你的无线网卡最大需要多大电流，usb标准供电是500mA，一般情况下，很多usb口的供电还达不到500mA，可以考虑并联一路5V电源给无线网卡

【 在 zglbupt 的大作中提到: 】 : 应该是你的USB口供电不足，看看你的无线网卡最大需要多大电流，usb标准供电是500mA，一般情况下，很多usb口的供电还达不到500mA，可以考虑并联一路5V电源给无线网卡 : -- 恩 觉得这个答案挺靠谱的 多谢啦

你好，我想请问下你的这个问题最后是怎么解决的呢？ musb_h_tx_flush_fifo 124: Could not flush host TX fifo: csr: 000a 问题产生的原因是 供电不足么？还是有别的原因？谢谢！