Device Drivers and Devices [closed]
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Does the kernel have a device driver for each device type or for each different device?
What I mean is;
1) There are only four different types of device: Char devices, block devices, network interfaces, and clock-timers. Someone told me that there are only four device drivers for each device type. In this case, there is char device driver and it controls all char devices of the computer.
2) There are many devices, and for each different device, there is a device driver. For example, sda and sdb are different devices, but they are the same type of device (SCSI disk). Because they are the same type of device, they are controlled by the same device driver. However, vcs and sd are different types of character devices, so they are controlled by different kind of device drivers.
Which concept is true?
I think the second one is correct one.
drivers devices
asked Nov 22 at 9:31
Goktug
1136
closed as off-topic by user535733, N0rbert, waltinator, Eric Carvalho, muru Nov 28 at 11:41
This question appears to be off-topic. The users who voted to close gave this specific reason:
- "This is not about Ubuntu. Questions about other Linux distributions can be asked on Unix & Linux, those about Windows on Super User, those about Apple products on Ask Different and generic programming questions on Stack Overflow." – user535733, waltinator, muru
If this question can be reworded to fit the rules in the help center, please edit the question.
add a comment |
up vote
0
down vote
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Does the kernel have a device driver for each device type or for each different device?
What I mean is;
1) There are only four different types of device: Char devices, block devices, network interfaces, and clock-timers. Someone told me that there are only four device drivers for each device type. In this case, there is char device driver and it controls all char devices of the computer.
2) There are many devices, and for each different device, there is a device driver. For example, sda and sdb are different devices, but they are the same type of device (SCSI disk). Because they are the same type of device, they are controlled by the same device driver. However, vcs and sd are different types of character devices, so they are controlled by different kind of device drivers.
Which concept is true?
I think the second one is correct one.
drivers devices
asked Nov 22 at 9:31
Goktug
1136
closed as off-topic by user535733, N0rbert, waltinator, Eric Carvalho, muru Nov 28 at 11:41
This question appears to be off-topic. The users who voted to close gave this specific reason:
- "This is not about Ubuntu. Questions about other Linux distributions can be asked on Unix & Linux, those about Windows on Super User, those about Apple products on Ask Different and generic programming questions on Stack Overflow." – user535733, waltinator, muru
If this question can be reworded to fit the rules in the help center, please edit the question.
add a comment |
up vote
0
down vote
favorite
up vote
0
down vote
favorite
Does the kernel have a device driver for each device type or for each different device?
What I mean is;
1) There are only four different types of device: Char devices, block devices, network interfaces, and clock-timers. Someone told me that there are only four device drivers for each device type. In this case, there is char device driver and it controls all char devices of the computer.
2) There are many devices, and for each different device, there is a device driver. For example, sda and sdb are different devices, but they are the same type of device (SCSI disk). Because they are the same type of device, they are controlled by the same device driver. However, vcs and sd are different types of character devices, so they are controlled by different kind of device drivers.
Which concept is true?
I think the second one is correct one.
drivers devices
asked Nov 22 at 9:31
Goktug
1136
Does the kernel have a device driver for each device type or for each different device?
What I mean is;
1) There are only four different types of device: Char devices, block devices, network interfaces, and clock-timers. Someone told me that there are only four device drivers for each device type. In this case, there is char device driver and it controls all char devices of the computer.
2) There are many devices, and for each different device, there is a device driver. For example, sda and sdb are different devices, but they are the same type of device (SCSI disk). Because they are the same type of device, they are controlled by the same device driver. However, vcs and sd are different types of character devices, so they are controlled by different kind of device drivers.
Which concept is true?
I think the second one is correct one.
drivers devices
drivers devices
asked Nov 22 at 9:31
Goktug
1136
asked Nov 22 at 9:31
Goktug
1136
asked Nov 22 at 9:31
Goktug
1136
asked Nov 22 at 9:31
Goktug
1136
asked Nov 22 at 9:31
Goktug
1136
1136
closed as off-topic by user535733, N0rbert, waltinator, Eric Carvalho, muru Nov 28 at 11:41
This question appears to be off-topic. The users who voted to close gave this specific reason:
- "This is not about Ubuntu. Questions about other Linux distributions can be asked on Unix & Linux, those about Windows on Super User, those about Apple products on Ask Different and generic programming questions on Stack Overflow." – user535733, waltinator, muru
If this question can be reworded to fit the rules in the help center, please edit the question.
closed as off-topic by user535733, N0rbert, waltinator, Eric Carvalho, muru Nov 28 at 11:41
This question appears to be off-topic. The users who voted to close gave this specific reason:
- "This is not about Ubuntu. Questions about other Linux distributions can be asked on Unix & Linux, those about Windows on Super User, those about Apple products on Ask Different and generic programming questions on Stack Overflow." – user535733, waltinator, muru
If this question can be reworded to fit the rules in the help center, please edit the question.
add a comment |
add a comment |
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