Я запускаю Debian 8 на iMx6, и все работает нормально, пока я быстро не выключу и не включу питание. (Quick Power Cycle) Я получаю это на dmesg:
usb 1-1.6: device no response, device descriptor read/64, error -32
Если я захожу с ssh и выполняю команду перезагрузки, я получаю ту же ошибку, что и предыдущая загрузка. Но если я выключу его и подожду не менее 5 секунд, USB запустится без проблем.
Кто-нибудь знает, что означает ошибка -32?
Вот вывод dmesg:
root@vasoport:~# dmesg | grep usb
[ 0.234446] usbcore: registered new interface driver usbfs
[ 0.234522] usbcore: registered new interface driver hub
[ 0.234614] usbcore: registered new device driver usb
[ 0.234783] 2000000.aips-bus:usbphy_nop1 supply vcc not found, using dummy regulator
[ 0.234907] 2000000.aips-bus:usbphy_nop2 supply vcc not found, using dummy regulator
[ 1.319001] usbcore: registered new interface driver rtl8192cu
[ 1.323787] usbcore: registered new interface driver cdc_ether
[ 1.328389] usbcore: registered new interface driver MOSCHIP usb-ethernet driver
[ 1.345027] usbcore: registered new interface driver cdc_acm
[ 1.356196] usbcore: registered new interface driver usb-storage
[ 1.361036] usbcore: registered new interface driver usbserial
[ 1.365648] usbcore: registered new interface driver usbserial_generic
[ 1.370922] usbserial: USB Serial support registered for generic
[ 1.375698] usbcore: registered new interface driver cp210x
[ 1.380013] usbserial: USB Serial support registered for cp210x
[ 1.384702] usbcore: registered new interface driver ftdi_sio
[ 1.389202] usbserial: USB Serial support registered for FTDI USB Serial Device
[ 1.395287] usbcore: registered new interface driver option
[ 1.399600] usbserial: USB Serial support registered for GSM modem (1-port)
[ 1.406359] 2184800.usbmisc supply vbus-wakeup not found, using dummy regulator
[ 1.460961] usb0: HOST MAC 42:3f:32:d8:7c:c0
[ 1.464020] usb0: MAC ea:65:54:9f:3e:fe
[ 1.592253] usbcore: registered new interface driver uvcvideo
[ 1.621151] usbcore: registered new interface driver bcm203x
[ 1.625616] usbcore: registered new interface driver btusb
[ 1.629884] usbcore: registered new interface driver ath3k
[ 1.773230] usb 1-1: new high-speed USB device number 2 using ci_hdrc
[ 2.213248] usb 1-1.1: new low-speed USB device number 3 using ci_hdrc
[ 2.313217] usb 1-1.1: device no response, device descriptor read/64, error -32
[ 2.503239] usb 1-1.1: device no response, device descriptor read/64, error -32
[ 2.703225] usb 1-1.1: new low-speed USB device number 4 using ci_hdrc
[ 2.793222] usb 1-1.1: device no response, device descriptor read/64, error -32
[ 2.993222] usb 1-1.1: device no response, device descriptor read/64, error -32
[ 3.183224] usb 1-1.1: new low-speed USB device number 5 using ci_hdrc
[ 3.190138] usbcore: registered new interface driver usbhid
[ 3.194438] usbhid: USB HID core driver
[ 3.197772] usbcore: registered new interface driver snd-usb-audio
[ 3.371438] usb_otg_vbus: disabling
[ 3.603314] usb 1-1.1: device not accepting address 5, error -32
[ 3.703272] usb 1-1.1: new low-speed USB device number 6 using ci_hdrc
[ 4.123304] usb 1-1.1: device not accepting address 6, error -32
[ 4.136116] usb 1-1-port1: unable to enumerate USB device
[ 4.373263] usb 1-1.6: new low-speed USB device number 7 using ci_hdrc
[ 4.453252] usb 1-1.6: device no response, device descriptor read/64, error -32
[ 4.643963] usb 1-1.6: device no response, device descriptor read/64, error -32
[ 4.833317] usb 1-1.6: new low-speed USB device number 8 using ci_hdrc
[ 4.943258] usb 1-1.6: device no response, device descriptor read/64, error -32
[ 5.133246] usb 1-1.6: device no response, device descriptor read/64, error -32
[ 5.323272] usb 1-1.6: new low-speed USB device number 9 using ci_hdrc
[ 5.743293] usb 1-1.6: device not accepting address 9, error -32
[ 5.843271] usb 1-1.6: new low-speed USB device number 10 using ci_hdrc
[ 6.263291] usb 1-1.6: device not accepting address 10, error -32
Похоже, что-то с напряжением, я думаю, но есть ли способ исправить это на стороне программного обеспечения?
Редактировать: Здесь представлены напряжения 5 В и 3 В 3, а также вывод сброса iMx6, который все больше и больше показывает, что напряжение 3 В 3 в порядке.
Нормальный старт
Быстрый старт