Tengo una llave USB que estaba funcionando y ahora ya no se puede montar. El dispositivo se detecta pero no está montado. Después de un minuto aproximadamente, se mueve al estado no detectado.
El comando ioreg -p IOUSB -w0 -l devuelve lo siguiente justo después de la conexión. Después de un tiempo, el dispositivo desaparece de la lista.
+-o USB Flash Disk@14100000 <class AppleUSBDevice, id 0x100007502, registered, matched, active, busy 0 (7 ms), retain 19>
| {
| "sessionID" = 140116672718152
| "iManufacturer" = 1
| "bNumConfigurations" = 1
| "idProduct" = 4096
| "bcdDevice" = 4352
| "Bus Power Available" = 250
| "USB Address" = 10
| "bMaxPacketSize0" = 64
| "iProduct" = 2
| "iSerialNumber" = 3
| "bDeviceClass" = 0
| "Built-In" = No
| "locationID" = 336592896
| "bDeviceSubClass" = 0
| "bcdUSB" = 512
| "USB Product Name" = "USB Flash Disk"
| "PortNum" = 1
| "non-removable" = "no"
| "IOCFPlugInTypes" = {"9dc7b780-9ec0-11d4-a54f-000a27052861"="IOUSBFamily.kext/Contents/PlugIns/IOUSBLib.bundle"}
| "bDeviceProtocol" = 0
| "IOUserClientClass" = "IOUSBDeviceUserClientV2"
| "IOPowerManagement" = {"DevicePowerState"=0,"CurrentPowerState"=4,"CapabilityFlags"=32768,"MaxPowerState"=4,"DriverPowerState"=4}
| "kUSBCurrentConfiguration" = 1
| "Device Speed" = 2
| "USB Vendor Name" = "General"
| "idVendor" = 2316
| "IOGeneralInterest" = "IOCommand is not serializable"
| "USB Serial Number" = "04IUVY6CK9W0QCJJ"
| "IOClassNameOverride" = "IOUSBDevice"
| }
|
+-o USB Flash Disk@14200000 <class AppleUSBDevice, id 0x100007700, registered, matched, active, busy 0 (7 ms), retain 18>
{
"sessionID" = 142173080787396
"iManufacturer" = 1
"bNumConfigurations" = 1
"idProduct" = 4096
"bcdDevice" = 4352
"Bus Power Available" = 250
"USB Address" = 31
"bMaxPacketSize0" = 64
"iProduct" = 2
"iSerialNumber" = 3
"bDeviceClass" = 0
"Built-In" = No
"locationID" = 337641472
"bDeviceSubClass" = 0
"bcdUSB" = 512
"USB Product Name" = "USB Flash Disk"
"PortNum" = 2
"non-removable" = "no"
"IOCFPlugInTypes" = {"9dc7b780-9ec0-11d4-a54f-000a27052861"="IOUSBFamily.kext/Contents/PlugIns/IOUSBLib.bundle"}
"bDeviceProtocol" = 0
"IOUserClientClass" = "IOUSBDeviceUserClientV2"
"IOPowerManagement" = {"DevicePowerState"=0,"CurrentPowerState"=4,"CapabilityFlags"=32768,"MaxPowerState"=4,"DriverPowerState"=4}
"kUSBCurrentConfiguration" = 1
"Device Speed" = 2
"USB Vendor Name" = "General"
"idVendor" = 2316
"IOGeneralInterest" = "IOCommand is not serializable"
"USB Serial Number" = "04P6O04UC8YSC6QU"
"IOClassNameOverride" = "IOUSBDevice"
}
El dispositivo 140116672718152 se detecta correctamente y funciona correctamente (es una llave USB del mismo tipo) y el dispositivo 142173080787396 es el problema. Se detecta y se enumera, pero después de un tiempo desaparece de la lista. ¿Hay alguna manera de restablecer el firmware de la llave USB o algo así? No puedo conectar la llave a otra laptop. Creo que no funciona porque me he desconectado sin expulsar durante una transferencia, pero no estoy seguro de eso.