Hello! I'm trying to code a watchdog driver for the Winbond w83793g chip. I already coded a watchdog for another Winbond chip before, but for this I need to access it over the system managment bus (or more specific the i2c, client address 2E).
I already coded the detection and initialization routines, but now I need some help, because I do not know how to use the i2c framework together with the watchdog framework. All other drivers I found are using the sysfs framework. This functions use the to_i2c_client() function to get a pointer to the i2c client. I tried to store the i2c client pointer to a global variable, to use it later in the watchdog functions. But when I try to use the "i2c_smbus_read_byte_data()" or "i2c_smbus_write_byte_data()" functions, I will get a kernel OOPS (without any hw-sensors driver loaded!). What is the best method to get the watchdog framework (i.e. the open, close, write, read and ioctl functions) to work with the i2c framework? Moreover the w83793g hardware sensors driver may already accessing the same chip. What is the normal way to deal with this? Regards Sven Anders -- Sven Anders <[email protected]> () Ascii Ribbon Campaign /\ Support plain text e-mail ANDURAS service solutions AG Innstrasse 71 - 94036 Passau - Germany Web: www.anduras.de - Tel: +49 (0)851-4 90 50-0 - Fax: +49 (0)851-4 90 50-55 Those who would give up essential Liberty, to purchase a little temporary Safety, deserve neither Liberty nor Safety. - Benjamin Franklin
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