Problem adding driver to kernel

This question is answered

Posted by Marcel Stumpel

on Apr 19 2012 05:53 AM

For our design we need additional Irda uarts. Therefor we added a SC16is752 to I2c.

For adding the driver I added in the drivers/serial.kconfig

config SERIAL_SC16IS752
       tristate "SC16IS752 chips"
       depends on I2C && GPIOLIB
       select SERIAL_CORE
       help
         gpio driver for SC16IS752 I2C UARTs.

in drivers/serial/makefile

obj-$(CONFIG_SERIAL_SC16IS752) += sx16is752.o

in drivers/serial/serial_core.h

#define PORT_SC16IS7X2	20	/* SC16IS7x2 SPI UART */
#define PORT_MAX_8250  	20	/* max port ID */

and the SC16is752.c file in the drivers/serial folder.

Then in the config of the evm am3517_evm_defconfig added 'CONFIG_SERIAL_SC16IS752=y'

If I now build the kernel I get following message:

  CC      drivers/serial/8250.o
  CC      drivers/serial/8250_early.o
make[3]: *** No rule to make target `drivers/serial/sx16is752.o', needed by `drivers/serial/built-in.o'.  Stop.
make[2]: *** [drivers/serial] Error 2
make[1]: *** [drivers] Error 2
make[1]: Leaving directory `/usr/local/ti-sdk-am3517-evm/board-support/linux-2.6.37-psp04.02.00.07.sdk'
make: *** [linux] Error 2

Question now is are there more configurations to be updated to add this driver?

Regards
Marcel Stumpel

All Replies

Posted by Anil

on Apr 19 2012 06:46 AM

Verified Answer

Verified by Marcel Stumpel

Expert6655 points

Hi Marcel,

Marcel Stumpel

....

obj-$(CONFIG_SERIAL_SC16IS752) += sx16is752.o

....

and the SC16is752.c file in the drivers/serial folder.

Then in the config of the evm am3517_evm_defconfig added 'CONFIG_SERIAL_SC16IS752=y'

If I now build the kernel I get following message:

CC drivers/serial/8250.o
CC drivers/serial/8250_early.o
make[3]: *** No rule to make target `drivers/serial/sx16is752.o', needed by `drivers/serial/built-in.o'. Stop.
make[2]: *** [drivers/serial] Error 2
make[1]: *** [drivers] Error 2
make[1]: Leaving directory `/usr/local/ti-sdk-am3517-evm/board-support/linux-2.6.37-psp04.02.00.07.sdk'
make: *** [linux] Error 2

Your file name should be match with object name, use either SC16is752.c & SC16is752.o or sx16is752.c & sx16is752.o

Regards

AnilKumar

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Posted by francis kumar

on Feb 04 2013 01:55 AM

Expert1020 points

Hi,

I am using the chip SC16IS752 with my OMAP-L138 Processor. Please share the 'SC16IS752' driver source code and explain how to integrate this driver with main

kernel. Please let us know the brief steps.

Thanks.,

Francis