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WorksheetsUNIT 5 EOSDD
Total questions: 15
Worksheet time: 15mins
Which of the following is used for accessing sequential access devices?
Character device driver
Block device drivers
Network device drivers
None of the above
Which of the following is used for used for driving random access devices?
Character device driver
Block device drivers
Network device drivers
None of the above
Which of the following is the internal address register and is filled during the initialization time in PCF8584 I2C adapter?
S0’
S0
S1
S2
Which of the following ioctl function is used to reprime the watchdog?
WDIOC_KEEPALIVE
WDIOC_ SETTIMEOUT
my_uart_start_tx
uart_circ_clear
The layer provides hardware abstraction for the USB device is
Controller driver
Gadget driver
TTY Layer
Network driver
The buffer which is used by LINUX for transmission and reception is
AR BUFF
JK BUFF
SK BUFF
NET IF
How many types of drivers are there ?
Two
Three
Four
Five
In I2C bus which phase the master sends the address of the target slave device and transfer mode
Idle Phase
Data transfer phase
Start Phase
Address Phase
which of the following is the Interrupt vector register on I2C bus adapter ?
S0
S1
S2
S3
In Data transmission which function is used to find if the buffer is empty
uart_circ_empty()
uart_circ_clear()
uart_circ_chars_pending()
my_uart_char_tx
Which device helps in establishing flawless communication between connected perhperal devices.
USB
Pen drive
ethernet
modem
How many types of USB Connectors are there till date
7
8
6
3
Which encoded data scheme is present in the USB devices to send and receive data
NRZI
OTG
OTT
OTP
Which USB version comes with a cable length of 5 metres
USB 1.1
USB 2.1
USB 3.1
USB 4.1
Which topology does the USB architecture is said to follow
MESH
STAR
ROUND
BUS
