597151d963
The new API now covers the entire character driver protocol, while hiding all the message details. It should therefore be used by all new character drivers. All existing drivers that already made use of libchardriver have been changed to use the new API. As one of the most important API changes, support for scatter and gather transfers has been removed, as several key drivers already did not support this, and it could be supported at the safecopy level instead (for a future readv/writev). Additional changes include: - respond to block device open requests to avoid hanging VFS threads; - add support for sef_cancel. Change-Id: I1bab6c1cb66916c71b87aeb1db54a9bdf171fe6b |
||
|---|---|---|
| .. | ||
| arch/earm | ||
| fb.c | ||
| fb.h | ||
| fb_edid.c | ||
| fb_edid.h | ||
| logos.h | ||
| Makefile | ||
| README.txt | ||
Frame Buffer Driver =================== Overview -------- This is the driver for the frame buffer. Currently it only supports the DM37XX (BeagleBoard-xM). Testing the Code ---------------- Starting up an instance: service up /usr/sbin/fb -dev /dev/fb0 -args edid.0=cat24c256.3.50 The arguments take the following form: edid.X=L where X is the frame buffer device (usually 0) and L is the service label of the service to perform the EDID reading. In the example above, it's the EEPROM with slave address 0x50 on the 3rd I2C bus. If you want to use the defaults and skip EDID reading, you may omit the arguments.