Re: [PATCH 2/2] MEMSTICK: Add driver for Ricoh R5C592 Card reader.

[Maxim Levitsky <maximlevitsky@gmail.com>]

About INT bits, I still don't understand them exactly.

First of all we have 4 meaningful bits.
In parallel mode these are exposed on data lines, in serial mode only 
MEMSTICK_INT_CED is.
And I can always send MS_TPC_GET_INT or just read the registers.

#define MEMSTICK_INT_CMDNAK 0x01
#define MEMSTICK_INT_BREQ   0x20
#define MEMSTICK_INT_ERR    0x40
#define MEMSTICK_INT_CED    0x80


Now, I send a command to device, say MS_CMD_BLOCK_READ.
What bits I need to poll until I can be sure that command is completed?

Also the MEMSTICK_INT_BREQ tells that input is available in firmware
buffer (to read using TPC_READ_LONG_DATA)?



Is that true that MEMSTICK_INT_BREQ is a summary of fifo full/empty bits
in status0?

And same about MEMSTICK_INT_ERR and status1.

I try my best to create a driver that actually works, simple, and error
free, even in unusual conditions.
Thats why I am asking all these questions.

Thanks for help,
Best regards,
Maxim Levitsky