26 Nov, 2014
1 commit
-
Signed-off-by: Laurentiu Palcu
20 Nov, 2014
3 commits
-
Sparse catches a couple endian bugs.
Signed-off-by: Dan Carpenter
Acked-by: Octavian Purdila
Signed-off-by: Lee Jones -
The echo field in dln2_transfer_complete comes directly from an USB
transfer and we should not trust it is valid.Reported-by: Dan Carpenter
Signed-off-by: Octavian Purdila
Signed-off-by: Lee Jones -
If wait_for_completion_interruptible_timeout returns a positive value
it may be propagated as the return value of _dln2_transfer. This
contradicts the documentation of the function and exposes unnecessary
internals to the callers.This patch makes sure to set the return value to 0 in that case.
Reported-by: Julia Lawall
Signed-off-by: Octavian Purdila
Signed-off-by: Lee Jones
11 Nov, 2014
1 commit
-
This patch implements the USB part of the Diolan USB-I2C/SPI/GPIO
Master Adapter DLN-2. Details about the device can be found here:https://www.diolan.com/i2c/i2c_interface.html.
Information about the USB protocol can be found in the Programmer's
Reference Manual [1], see section 1.7.Because the hardware has a single transmit endpoint and a single
receive endpoint the communication between the various DLN2 drivers
and the hardware will be muxed/demuxed by this driver.Each DLN2 module will be identified by the handle field within the DLN2
message header. If a DLN2 module issues multiple commands in parallel
they will be identified by the echo counter field in the message header.The DLN2 modules can use the dln2_transfer() function to issue a
command and wait for its response. They can also register a callback
that is going to be called when a specific event id is generated by
the device (e.g. GPIO interrupts). The device uses handle 0 for
sending events.[1] https://www.diolan.com/downloads/dln-api-manual.pdf
Signed-off-by: Octavian Purdila
Reviewed-by: Johan Hovold
Signed-off-by: Lee Jones