2023-11-16 07:29:56

by Manikanta Guntupalli

Subject: [PATCH V3 1/2] Documentation: devices.txt: Update ttyUL major number allocation details

Describe when uartlite driver uses static/dynamic allocation for major
number based on maximum number of uartlite serial ports.

Signed-off-by: Manikanta Guntupalli <[email protected]>
---
Changes for V2:
This patch introduced in V2.
Changes for V3:
Fix typo.
Move description to above of ttyUL.
---
Documentation/admin-guide/devices.txt | 3 +++
1 file changed, 3 insertions(+)

diff --git a/Documentation/admin-guide/devices.txt b/Documentation/admin-guide/devices.txt
index 839054923530..ae7431e317ad 100644
--- a/Documentation/admin-guide/devices.txt
+++ b/Documentation/admin-guide/devices.txt
@@ -2704,6 +2704,9 @@
...
185 = /dev/ttyNX15 Hilscher netX serial port 15
186 = /dev/ttyJ0 JTAG1 DCC protocol based serial port emulation
+
+ If maximum number of uartlite serial ports are more than 4, then driver uses
+ dynamic allocation instead of static allocation for major number.
187 = /dev/ttyUL0 Xilinx uartlite - port 0
...
190 = /dev/ttyUL3 Xilinx uartlite - port 3
--
2.25.1

2023-11-16 10:33:49

by Hugo Villeneuve

Subject: Re: [PATCH V3 1/2] Documentation: devices.txt: Update ttyUL major number allocation details

On Thu, 16 Nov 2023 12:59:14 +0530
Manikanta Guntupalli <[email protected]> wrote:

Hi,

> Describe when uartlite driver uses static/dynamic allocation for major
> number based on maximum number of uartlite serial ports.
>
> Signed-off-by: Manikanta Guntupalli <[email protected]>
> ---
> Changes for V2:
> This patch introduced in V2.
> Changes for V3:
> Fix typo.
> Move description to above of ttyUL.
> ---
> Documentation/admin-guide/devices.txt | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/Documentation/admin-guide/devices.txt b/Documentation/admin-guide/devices.txt
> index 839054923530..ae7431e317ad 100644
> --- a/Documentation/admin-guide/devices.txt
> +++ b/Documentation/admin-guide/devices.txt
> @@ -2704,6 +2704,9 @@
> ...
> 185 = /dev/ttyNX15 Hilscher netX serial port 15
> 186 = /dev/ttyJ0 JTAG1 DCC protocol based serial port emulation
> +
> + If maximum number of uartlite serial ports are more than 4, then driver uses

"are more" -> "is more"

"then driver" -> "the driver" (or "then the driver")

Hugo.


> + dynamic allocation instead of static allocation for major number.
> 187 = /dev/ttyUL0 Xilinx uartlite - port 0
> ...
> 190 = /dev/ttyUL3 Xilinx uartlite - port 3
> --
> 2.25.1
>


--
Hugo Villeneuve <[email protected]>