Vincent MAILHOL 于2021年1月22日周五 下午4:51写道：
>
> Hi,
>
> In addition to Marc’s comment, I also have security concerns.
>
> On Fri. 22 Jan 2021 at 15:22, Su Yanjun wrote:
> > When i debug mcp2518fd, some method to track registers is
> > needed. This easy debug interface will be ok.
> >
> > For example,
Hi,
In addition to Marc’s comment, I also have security concerns.
On Fri. 22 Jan 2021 at 15:22, Su Yanjun wrote:
> When i debug mcp2518fd, some method to track registers is
> needed. This easy debug interface will be ok.
>
> For example,
> read a register at 0xe00:
> echo 0xe00 > can_get_reg
> c
在 2021/1/22 下午3:22, Marc Kleine-Budde 写道:
On 1/22/21 7:22 AM, Su Yanjun wrote:
When i debug mcp2518fd, some method to track registers is
needed. This easy debug interface will be ok.
NACK
As the driver uses regmap, everything should be there already.
To read use:
| cat /sys/kernel/debug/re
On 1/22/21 7:22 AM, Su Yanjun wrote:
> When i debug mcp2518fd, some method to track registers is
> needed. This easy debug interface will be ok.
NACK
As the driver uses regmap, everything should be there already.
To read use:
| cat /sys/kernel/debug/regmap/spi0.0-crc/registers
Register write s
When i debug mcp2518fd, some method to track registers is
needed. This easy debug interface will be ok.
For example,
read a register at 0xe00:
echo 0xe00 > can_get_reg
cat can_get_reg
write a register at 0xe00:
echo 0xe00,0x60 > can_set_reg
Signed-off-by: Su Yanjun
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.../net/can/spi/mcp251xf
